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

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

Change-Id: Ib7fe454a4e6442718f460b9c138c44041f3ed571
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>