Merge Android R

Bug: 168057903
Merged-In: I8a6a13dc1fdd09f3851cbdee0bbb4165247b3735
Change-Id: I4197e3afce895c61ea32081a74974b1a1748201a
tree: 6b63a0c462516c8c7ad109d090ea5c5197101ccc
  1. res/
  2. src/
  3. Android.bp
  4. AndroidManifest.xml
  5. CleanSpec.mk
  6. OWNERS