Propagate stub_only_libs to the invocation generating stub sources

In some cases the java_sdk_library needs to compile against hidden
platform APIs, in order to do so it needs to add impl_only_libs
dependency on the framework library, and set the sdk_version property to
the "core_*" one (e.g. core_platform).

However, if this java_sdk_library depends on the Android SDK in it's
stable API surface, then the setup above will break the stubs srcs
generation, as it uses the sdk_version of the java_sdk_library (e.g.
core_platform), which doesn't have symbols from the Android SDK.

This chage solves the problem by propagating the stub_only_libs to the
invocation that generates the stub sources. It allows the
java_sdk_libraries to add a stub_only_libs dependency on the
android_module_lib_stubs_current stubs library to fix their stubs build.

For more context see another change in this topic:
https://android-review.git.corp.google.com/c/platform/packages/modules/Virtualization/+/2310569

Bug: 243512044
Test: builds
Test: m nothing
Change-Id: Id745cfb2789901672561050c1c3f8bb163922379

java/sdk_library.go

@@ -1648,6 +1648,7 @@ func (module *SdkLibrary) createStubsSourcesAndApi(mctx android.DefaultableHookC
 	// shared libs and static libs. So we need to add both of these libs to Libs property.
 	props.Libs = module.properties.Libs
 	props.Libs = append(props.Libs, module.properties.Static_libs...)
+	props.Libs = append(props.Libs, module.sdkLibraryProperties.Stub_only_libs...)
 	props.Aidl.Include_dirs = module.deviceProperties.Aidl.Include_dirs
 	props.Aidl.Local_include_dirs = module.deviceProperties.Aidl.Local_include_dirs
 	props.Java_version = module.properties.Java_version