rename romdriver handle

forming API for USBD-CLASS driver (abstract away from rom driver)
separate buffer of hid class from buffer of core driver

tinyusb/device/dcd_nxp_romdriver.h

@@ -47,6 +47,7 @@
 #define _TUSB_DCD_NXP_ROMDRIVER_H_
 
 #include "common/common.h"
+#include "romdriver/mw_usbd_rom_api.h"
 
 #ifdef __cplusplus
  extern "C" {
@@ -62,6 +63,8 @@
   #error forgot something, thach ?
 #endif
 
+extern USBD_HANDLE_T romdriver_hdl;
+
 #ifdef __cplusplus
  }
 #endif