hasGps is a better name than hasGpsAntenna

Author: rbiasini

log.capnp

@@ -302,7 +302,7 @@ struct HealthData {
   controlsAllowed @3 :Bool;
   gasInterceptorDetected @4 :Bool;
   startedSignalDetectedDeprecated @5 :Bool;
-  hasGpsAntenna @6 :Bool;
+  hasGps @6 :Bool;
   canSendErrs @7 :UInt32;
   canFwdErrs @8 :UInt32;
   gmlanSendErrs @9 :UInt32;