Add contentDescription to QCActionItem / QCItem am: b04a6e0072

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Car/systemlibs/+/22746901

Change-Id: I6028d096a843a5be0db589d7c91821187b86fb22
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>