Bluetooth: SAP: Add SAP high security support to Bluetooth APP

This change consists of:
High security authentication changes

Change-Id: I08d4e411c31257794256a06447179229b0119e6a
(cherry picked from commit 22644ac957306510f281d062fef0a0edf4cf7eee)
(cherry picked from commit 9b8c9623f158073c2404d8e3e28fa1e01681a850)

Conflicts:
	src/com/android/bluetooth/btservice/RemoteDevices.java