NFS: Fix sparse annotations for nfs_set_open_stateid_locked()

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>

fs/nfs/nfs4proc.c

@@ -1555,6 +1555,10 @@ static void nfs_clear_open_stateid(struct nfs4_state *state,
 
 static void nfs_set_open_stateid_locked(struct nfs4_state *state,
 		const nfs4_stateid *stateid, nfs4_stateid *freeme)
+	__must_hold(&state->owner->so_lock)
+	__must_hold(&state->seqlock)
+	__must_hold(RCU)
+
 {
 	DEFINE_WAIT(wait);
 	int status = 0;