Add sdk_version to test libraries

If sdk_version is empty, by default the library will be built against
the implementation of the framework jars. There are on going project to
automatically repackaging flag libraries in the libray which is built
direactly against the implementation of the framework jars.

This change set the right sdk_version for the testing library.

Bug: 310504781
Test: atest jarjar-rules-generator-test and CI
Change-Id: I24d8dc47f7ed83f0b84c632d24396e2bdf932424

tools/Android.bp

@@ -42,6 +42,7 @@ java_library {
     name: "jarjar-rules-generator-testjavalib",
     srcs: ["testdata/java/**/*.java"],
     libs: ["unsupportedappusage"],
+    sdk_version: "core_platform",
     visibility: ["//visibility:private"],
 }
 
@@ -56,6 +57,7 @@ java_library {
     static_libs: [
         "framework-connectivity.stubs.module_lib",
     ],
+    sdk_version: "module_current",
     // Not strictly necessary but specified as this MUST not have generate
     // a dex jar as that will break the tests.
     compile_dex: false,
@@ -67,6 +69,7 @@ java_library {
     static_libs: [
         "framework-connectivity-t.stubs.module_lib",
     ],
+    sdk_version: "module_current",
     // Not strictly necessary but specified as this MUST not have generate
     // a dex jar as that will break the tests.
     compile_dex: false,