Enable shrinking for ImsMediaService am: 9ddb8b6bc8

Original change: https://android-review.googlesource.com/c/platform/packages/modules/ImsMedia/+/3214303

Change-Id: I634d6390153b1ef8dcedc07a56c22687335aec50
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>