We need to keep the resoruce generated class files in the support
libraries' built jar files when compiling with javac,
with the introduction of LOCAL_SHARED_ANDROID_LIBRARIES support of aapt2.
We strip them when packaging up the SDK package in this change.
Bug: 28454725
Bug: 22775504
Change-Id: Id5fb30915e698887e5a8d92f26d4ac8f3159613a