Instrument the java_sdk_library implementation library

Bug: 159241638
Test: build jacoco-report-classes-all.jar with and without
      prebuilt for framework-tethering. Ensure it contains the
      jacoco-report-classes.jar for framework-tethering.
Change-Id: I8183bd9613dfaf0ded5f9ac36567d5d29a8941e8
Merged-In: I8183bd9613dfaf0ded5f9ac36567d5d29a8941e8

java/sdk_library.go

@@ -1091,9 +1091,12 @@ func (module *SdkLibrary) createImplLibrary(mctx android.DefaultableHookContext)
 	props := struct {
 		Name       *string
 		Visibility []string
+		Instrument bool
 	}{
 		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,
 	}
 
 	properties := []interface{}{