[automerged blank] Add filegroup_defaults module 2p: ac7ec54004

Blank merge reason: Change-Id I82feac37ae6998313a0004f8af58f3decf7a514e with SHA-1 7d6dd8bb33 is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/build/soong/+/22069507


Change-Id: I7f7e9c3b8d7cae3cb378d902e35168f51ed9d971
Merged-In: I82feac37ae6998313a0004f8af58f3decf7a514e