BTA_JvRfcommClose() function

* Function BTA_JvRfcommClose * Description This function closes an RFCOMM connection * When the connection is established or failed, * tBTA_JV_RFCOMM_CBACK is called with BTA_JV_RFCOMM_CLOSE_EVT * Returns BTA_JV_SUCCESS, if the request is being processed. * BTA_JV_FAILURE, otherwise.