free serial pins if gps_disabled is set

src/gps/GPS.cpp

@@ -322,6 +322,7 @@ GPS *createGps()
 #ifdef NO_GPS
     return nullptr;
 #else
+    if (!radioConfig.preferences.gps_disabled){
 #ifdef GPS_ALTITUDE_HAE
         DEBUG_MSG("Using HAE altitude model\n");
 #else
@@ -353,6 +354,7 @@ GPS *createGps()
             new_gps->setup();
             return new_gps;
         }
+    }
     return nullptr;
 #endif
 }