BT: Revert BluetoothPermissionRequest class name

Updated the class name to match it with the class name
defined by AOSP.

Change-Id: Ibd0d9a9b68a2d1ead9190593aa48dca541043961
CRs-Fixed: 484316
Merge "BT: Revert BluetoothPermissionRequest class name"
Merge branch 'jb_2.5' of git://codeaurora.org/platform/packages/apps/Bluetooth_msm into cm-10.1

merge latest commits