Apply hiddenapi encoding to java_sdk_library .impl

Adds a ConfigurationName property, and ConfigurationName() method that
allows a library to separate its name (e.g. framework-tethering.impl)
from the name used in the build configuration,
    e.g. ctx.Config().BootJars().

Updates hiddenapi processing to use ConfigurationName() instead of
ctx.ModuleName().

Changes java_sdk_library to set the ConfigurationName property
of the implementation library to the name of the module instead of
<module>.impl so that it will match the name in the boot jars list.

Bug: 159683330
Test: m framework-tethering
      dexdump ${PRODUCT_OUT}/apex/com.android.tethering/javalib/framework-tethering.jar | grep hiddenapi | wc -l
      Verify that there are >0 hiddenapi entries.
      Add java_sdk_library_import prefer=true for framework-tethering
      and repeat the above to verify that there are 0 hiddenapi entries.
      Apply this change, repeat above and verify that there are the same # of entries as before.
      Remove the prebuilt for framework-tethering
      Repeat the above and verify that there is no change to the # of entries
Change-Id: I6c3016c35d0fcb1b95d4f9b37a307a69878f8e0a

java/sdk_library.go

@@ -1088,15 +1088,22 @@ func (module *SdkLibrary) latestRemovedApiFilegroupName(apiScope *apiScope) stri
 
 // Creates the implementation java library
 func (module *SdkLibrary) createImplLibrary(mctx android.DefaultableHookContext) {
+
+	moduleNamePtr := proptools.StringPtr(module.BaseModuleName())
+
 	props := struct {
-		Name       *string
-		Visibility []string
-		Instrument bool
+		Name              *string
+		Visibility        []string
+		Instrument        bool
+		ConfigurationName *string
 	}{
 		Name:       proptools.StringPtr(module.implLibraryModuleName()),
 		Visibility: module.sdkLibraryProperties.Impl_library_visibility,
 		// Set the instrument property to ensure it is instrumented when instrumentation is required.
 		Instrument: true,
+
+		// Make the created library behave as if it had the same name as this module.
+		ConfigurationName: moduleNamePtr,
 	}
 
 	properties := []interface{}{