headers_check fix: usb/gadgetfs.h

fix the following 'make headers_check' warning:

  usr/include/linux/usb/gadgetfs.h:21: include of <linux/types.h> is preferred over <asm/types.h>
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>

include/linux/usb/gadgetfs.h

@@ -18,7 +18,7 @@
 #ifndef __LINUX_USB_GADGETFS_H
 #define __LINUX_USB_GADGETFS_H
 
-#include <asm/types.h>
+#include <linux/types.h>
 #include <asm/ioctl.h>
 
 #include <linux/usb/ch9.h>