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 am: 3bc2798a am: b3bb0fd3 am: 8cd3ee08

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



Change-Id: Id9a2e90026680ecebd35099245af970690ce2297
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>