Merge "[Bugfix]fix NullPointException when PackageInfo's verifiers is null " am: 56535ae511

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2264802

Change-Id: I90ccf643f834a25ba48751d96aa359ff601ba7e2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>