Fix bug of MediaQualityService not using the correct uid and pid.

The original functions call Binder.getCallingUid() in mHandler.post
block, which returns MediaQualityService's uid instead of callers uid.
This causes errors such as apk not receiving the PictureProfileCallback.

Flag: EXEMPT bug fix
Test: build success
Bug: 409235137
Change-Id: I0f47f028749b4aaf9b1e0ae0e5221bb8bbdbb47d