Bluetooth: SAP: Add framework changes to support SAP

Bluetooth SIM access server (SAP) profile APIs added to the
framework APIs. As SAP server supports only disconnection
of SAP profile level connection this API is implemeted
along with other APIs.

It registers bluetooth state changed callback with the
adapter service,once there is a change in the bluetooth
state,it will bind/unbind the SAP service which is
implemented in BluetoothExt.APK.

SAP service, and other SAP Application layer is implemented
in BluetoothExt.APK.

Change-Id: I7215f503244c5ee277e83d60d6960f18559acfb9

Conflicts:
	core/java/android/bluetooth/BluetoothDevice.java
(cherry picked from commit 86d14a60283c2315bea8a34f24dd0c22139a136b)
(cherry picked from commit 718d372656fa7a456247c4909baac6e7104049f8)