headers_check fix: mtd/inftl-user.h

fix the following 'make headers_check' warning:

  usr/include/mtd/inftl-user.h:61: found __[us]{8,16,32,64} type without #include <linux/types.h>

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
diff --git a/include/mtd/inftl-user.h b/include/mtd/inftl-user.h
index e17eda3..d409d48 100644
--- a/include/mtd/inftl-user.h
+++ b/include/mtd/inftl-user.h
@@ -6,6 +6,8 @@
 #ifndef __MTD_INFTL_USER_H__
 #define __MTD_INFTL_USER_H__
 
+#include <linux/types.h>
+
 #define	OSAK_VERSION	0x5120
 #define	PERCENTUSED	98