Add a new test target for rollback observer.

The tests were failing the first time on postsubmit because of test from
some other file. All the tests would pass on retry. Creating a new
target for rollback observer because we want them to run reliably.

Test: manual
Bug: 291137901
Change-Id: I7c4730391235bbbc07a98f17518d54037ff905e4

services/tests/mockingservicestests/src/com/android/server/rollback/Android.bp

+// Copyright (C) 2024 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package {
+    // See: http://go/android-license-faq
+    // A large-scale-change added 'default_applicable_licenses' to import
+    // all of the 'license_kinds' from "frameworks_base_license"
+    // to get the below license kinds:
+    //   SPDX-license-identifier-Apache-2.0
+    default_applicable_licenses: ["frameworks_base_license"],
+}
+
+android_test {
+    name: "RollbackPackageHealthObserverTests",
+
+    srcs: [
+        "*.java",
+    ],
+
+    static_libs: [
+        "androidx.test.runner",
+        "mockito-target-extended-minus-junit4",
+        "services.core",
+        "truth",
+        "flag-junit",
+    ],
+
+    libs: [
+        "android.test.mock",
+        "android.test.base",
+        "android.test.runner",
+    ],
+
+    jni_libs: [
+        "libdexmakerjvmtiagent",
+        "libstaticjvmtiagent",
+    ],
+
+    certificate: "platform",
+    platform_apis: true,
+    test_suites: [
+        "device-tests",
+        "automotive-tests",
+    ],
+}

services/tests/mockingservicestests/src/com/android/server/rollback/AndroidManifest.xml

+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2024 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.android.server.rollback">
+
+    <uses-sdk android:targetSdkVersion="35" />
+
+    <application android:testOnly="true"
+                 android:debuggable="true">
+        <uses-library android:name="android.test.runner" />
+    </application>
+
+    <instrumentation
+        android:name="androidx.test.runner.AndroidJUnitRunner"
+        android:targetPackage="com.android.server.rollback"
+        android:label="Frameworks Rollback Package Health Observer test" />
+</manifest>

services/tests/mockingservicestests/src/com/android/server/rollback/AndroidTest.xml

+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2024 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<configuration description="Runs Rollback Package Health Observer Tests.">
+    <option name="test-suite-tag" value="apct" />
+    <option name="test-suite-tag" value="apct-instrumentation" />
+
+    <target_preparer class="com.android.tradefed.targetprep.suite.SuiteApkInstaller">
+        <option name="cleanup-apks" value="true" />
+        <option name="install-arg" value="-t" />
+        <option name="test-file-name" value="RollbackPackageHealthObserverTests.apk" />
+    </target_preparer>
+
+    <option name="test-tag" value="RollbackPackageHealthObserverTests" />
+
+    <test class="com.android.tradefed.testtype.AndroidJUnitTest" >
+        <option name="package" value="com.android.server.rollback" />
+        <option name="runner" value="androidx.test.runner.AndroidJUnitRunner" />
+        <option name="hidden-api-checks" value="false"/>
+    </test>
+</configuration>

services/tests/mockingservicestests/src/com/android/server/rollback/TEST_MAPPING

 {
   "postsubmit": [
     {
-      "name": "FrameworksMockingServicesTests",
+      "name": "RollbackPackageHealthObserverTests",
       "options": [
         {
           "include-filter": "com.android.server.rollback"