BAapp: Remove shared BT UID from BA App

WRITE_MEDIA_STORAGE permission check failed for BAAPP.
As android.uid.bluetooth" is shared by Bluetooth
& BluetoothExt BAAPP. WRITE_MEDIA_STORAGE permission
gets inherited in  BAAPP from BluetoothExt.
so, remove shared BT UID to fix security issue during CTS test.

CRs-Fixed: 2454925
Change-Id: I058dce7265efb6c0f662c22e8191ed59de8a6008
1 file changed