Merge "Move frameworks/base/Android.mk to build/core" into main am: 9ba9e0a7 am: 5fe2ba20

Original change: https://android-review.googlesource.com/c/platform/build/+/2988638



Change-Id: I5e25b65ffb7e72cda7f699e3cbe64086a80a9800
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>