Merge "Ignore null action in AppBindingService." into main am: 0d2989e349 am: 503ccd3ffa

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/3328450

Change-Id: If1adb8b9ba7270be7eb4f49ad510944b56a6e1ab
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>