Don't check pkg<->uid when called from internal

The PermissionManagerService calls AppOpsService before the package
manager is up. Hence AppOpsService cannot verify package properties.
This is not needed in the calls from PermissionManagerService as this
component can be trusted to provide correct data.

Fixes: 127470436
Test: Upgraded from P->Q with a pre-M installed
Change-Id: Ide529f13ab2cc3b7551e99c94935c0cb537a817b