update(common/usb_memcpy): add CONFIG_USB_MEMCPY_DISABLE macro

Signed-off-by: sakumisu <1203593632@qq.com>

common/usb_memcpy.h

@@ -89,6 +89,8 @@ static inline void *usb_memcpy(void *s1, const void *s2, size_t n)
     return s1;
 }
 
+#ifndef CONFIG_USB_MEMCPY_DISABLE
 #define memcpy usb_memcpy
+#endif
 
 #endif