cherryusb:Add the missing header files for bsp/frdm-mcxa156.

bsp/nxp/mcx/mcxa/frdm-mcxa156/board/ports/cherryusb/usb_config.h

@@ -10,6 +10,8 @@
 #ifndef CHERRYUSB_CONFIG_H
 #define CHERRYUSB_CONFIG_H
 
+#include <rtthread.h>
+
 /* ================ USB common Configuration ================ */
 
 #define CONFIG_USB_PRINTF(...) printf(__VA_ARGS__)