Merge "Fix Proguard configuration output from R8 invocation" am: fda5890f...

Merge "Fix Proguard configuration output from R8 invocation" am: fda5890f am: feadf8b0 am: 76d6f34c am: 812d0bd8

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2580792



Change-Id: I7df0f1d6a1c9501ff35f9e241a155f058aba87a0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>