Merge "Check whether installerPackageName contains only valid characters" into udc-dev am: 85ba4e6b08 am: 008734084d am: 8cb5f78ac4

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/28440801

Change-Id: I04d4717609e271ee59dd31f18e249b66915c000c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>