Add back crc_status to UplinkRxInfo.

This is needed for implementing
https://github.com/chirpstack/chirpstack-concentratord/issues/29.

api/rust/src/gw.rs

@@ -128,6 +128,7 @@ impl UplinkFrame {
                     location: rx_info.location.clone(),
                     context: rx_info.context.clone(),
                     metadata: rx_info.metadata.clone(),
+                    crc_status: rx_info.crc_status,
                 });
             }
         }