BTM_SetConnectability() function

* Function BTM_SetConnectability * Description This function is called to set the device into or out of * connectable mode. Discoverable mode means page scans enabled. * Returns BTM_SUCCESS if successful * BTM_ILLEGAL_VALUE if a bad parameter is detected * BTM_NO_RESOURCES if could not allocate a message buffer * BTM_WRONG_MODE if the device is not up.