Merge "Filter package visibility in checkExistsAndEnforceCannotModifyImmutablyRestrictedPermission()." into sc-dev am: 4c2c1530 am: 695b2a1b

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

Change-Id: If6deab7b0458b23e2d19f60c0a0bcfa22a865c35