CIFS: Fix endian conversion of IndexNumber

by making it __le64 rather than __u64 in FILE_AL_INFO structure.
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Steve French <smfrench@gmail.com>

fs/cifs/cifspdu.h

@@ -2210,7 +2210,7 @@ typedef struct { /* data block encoding of response to level 263 QPathInfo */
 	__u8 DeletePending;
 	__u8 Directory;
 	__u16 Pad2;
-	__u64 IndexNumber;
+	__le64 IndexNumber;
 	__le32 EASize;
 	__le32 AccessFlags;
 	__u64 IndexNumber1;