Merge "Filter package visibility in checkExistsAndEnforceCannotModifyImmutablyRestrictedPermission()." into sc-dev am: 4c2c1530bf

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

Change-Id: I0df024e71ed61c84c7df3130628d524ba68b0367