CIFS: Convert lock type to 32 bit variable

to handle SMB2 lock type field further.

Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 03d24a5..0e06de1 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -567,7 +567,7 @@
 	__u64 offset;
 	__u64 length;
 	__u32 pid;
-	__u8 type;
+	__u32 type;
 };
 
 /*