add back in fix type conditional

Signed-off-by: dirksavage88 <dirksavage88@gmail.com>

src/drivers/uavcan/sensors/gnss.cpp

@@ -489,7 +489,7 @@ void UavcanGnssBridge::process_fixx(const uavcan::ReceivedDataStructure<FixType>
 	}
 
 	// Only use dual antenna gps yaw if fix type is (6)
-	if ((hrt_elapsed_time(&_last_gnss_relative_timestamp) < 2_s) && _rel_heading_valid) { // && _carrier_solution_fixed) {
+	if ((hrt_elapsed_time(&_last_gnss_relative_timestamp) < 2_s) && _rel_heading_valid && _carrier_solution_fixed) {
 
 		// Apply offset and report corrected heading
 		// float corrected_heading = _rel_heading - _yaw_offset_rads;