Merge "Filter package visibility in checkExistsAndEnforceCannotModifyImmutablyRestrictedPermission()." into sc-dev am: 4c2c1530 am: d0dd4332 am: 802fc53c am: 93d0d99d

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14390030

Change-Id: Ie9eb043ad759c801755780a847472cf0690731b6