Use TARGET_DEFAULT_JAVA_LIBRARIES instead of just framework.

- When raising the ProGuard sdk version for platform build, use
  TARGET_DEFAULT_JAVA_LIBRARIES instead of just framework.
- Also added SUPPORT_LIBRARY_ROOT to reference support library resource
  dir.

Bug: 20658265
Change-Id: Ib008d8e70508723db91431a062cac691367f2f6c
2 files changed