Merge "aconfig: separate package name and flag name using dot" into main am:...

Merge "aconfig: separate package name and flag name using dot" into main am: 2ee29fdf am: fb80ce53

Original change: https://android-review.googlesource.com/c/platform/build/+/2760466



Change-Id: I4ea92a9765ca130f9ece124169e0fa99ad134732
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>