Merge "Move frameworks/base/Android.mk to build/tasks" into main am: 12f9874baf

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2988112

Change-Id: I7d9342dda3e783c3f08f461f4610fd13b6533de4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>