Added support for the GameSir-G7 Controller for Xbox

src/joystick/hidapi/SDL_hidapijoystick.c

@@ -271,6 +271,7 @@ static SDL_GamepadType SDL_GetJoystickGameControllerProtocol(const char *name, U
             0x24c6, /* PowerA */
             0x2dc8, /* 8BitDo */
             0x2e24, /* Hyperkin */
+            0x3537, /* GameSir */
         };
 
         int i;