Add FakeGlobalSettings to Kosmos for testing.

Flag: NA
Test: unit tests
Bug: 325771449
Change-Id: Ia03c48baa31da0bc8fc33f2d085b48a9fc42caf3

packages/SystemUI/tests/utils/src/com/android/systemui/util/settings/FakeGlobalSettingsKosmos.kt

+/*
+ * 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 com.android.systemui.util.settings
+
+import com.android.systemui.kosmos.Kosmos
+import com.android.systemui.kosmos.Kosmos.Fixture
+
+val Kosmos.fakeGlobalSettings: FakeGlobalSettings by Fixture { FakeGlobalSettings() }