@EnforcePermission migrations - CarrierConfigLoader

Migrates call sites to use the @EnforcePermission annotation
instead of manually checking permissions.

These are fully behavior-preserving changes that can be identified by
Android Lint (see SimpleManualPermissionEnforcementDetector)

Bug: 265014041
Test: TH
Change-Id: I8e6b16477dc10dcf3caa925b3478058627ea1732
3 files changed