NFSv4: Ensure gcc 4.4.4 can compile initialiser for "invalid_stateid"

gcc 4.4.4 is too old to have full C11 anonymous union support, so
the current initialiser fails to compile.
Reported-by: NBoris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
(compile-)Tested-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reviewed-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: NAnna Schumaker <Anna.Schumaker@Netapp.com>

fs/nfs/nfs4state.c

@@ -71,8 +71,8 @@ const nfs4_stateid zero_stateid = {
 };
 const nfs4_stateid invalid_stateid = {
 	{
-		.seqid = cpu_to_be32(0xffffffffU),
-		.other = { 0 },
+		/* Funky initialiser keeps older gcc versions happy */
+		.data = { 0xff, 0xff, 0xff, 0xff, 0 },
 	},
 	.type = NFS4_INVALID_STATEID_TYPE,
 };