Bluetooth: Stack certification.

Stack certification changes for L2CAP, SDP and RFCOMM.

Change-Id: If322fff2c5dcf915333574aaae0394f130498305
Conflicts:
include/hardware/bluetooth.h
diff --git a/include/hardware/bluetooth.h b/include/hardware/bluetooth.h
index 4b0ab14..9a19ee5 100644
--- a/include/hardware/bluetooth.h
+++ b/include/hardware/bluetooth.h
@@ -551,6 +551,8 @@
       * Success indicates that the VSC command was sent to controller
       */
     int (*read_energy_info)();
+    /** BT stack Test interface */
+    const void* (*get_testapp_interface)(int test_app_profile);
 } bt_interface_t;
 
 /** TODO: Need to add APIs for Service Discovery, Service authorization and