Merge "transitive r8 flags for installable {android,java}_libraries" into main am: d9569528 am: 92bacc72

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2812555



Change-Id: Ibdf416956ac50fbee6a817010600e7e37cb3b144
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>