BTA_GATTC_ServiceSearchRequest() function

* Function BTA_GATTC_ServiceSearchRequest * Description This function is called to request a GATT service discovery * on a GATT server. This function report service search result * by a callback event, and followed by a service search complete * event. * Parameters conn_id: connection ID. * p_srvc_uuid: a UUID of the service application is interested in. * If Null, discover for all services. * Returns None