Merge Android R (rvc-dev-plus-aosp-without-vendor@6692709)

Bug: 166295507
Merged-In: Iee24bff1511bbf6a3407700147811020cc269c7f
Change-Id: I02ad49d6b2c3344b90108ee0933a82bd2244dfd8
tree: 27d8378cdb568e851bc7790007133952fb31309a
  1. Android.bp
  2. CleanSpec.mk
  3. src/