Merge "Block new Android.mk added to all directories except the directories...

Merge "Block new Android.mk added to all directories except the directories for partners" into main am: ba653991 am: a66f517b

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/3545613



Change-Id: Ie1df84c28e69c89ebab6147348357b54a1658228
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>