[SUNRPC]: trivial endianness annotations

pure s/u32/__be32/

[AV: large part based on Alexey's patches]

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index 953aff8..f09f748 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -1030,7 +1030,7 @@
 {
 	struct xdr_buf	*xbufp = &rqstp->rq_res;
 	int sent;
-	u32 reclen;
+	__be32 reclen;
 
 	/* Set up the first element of the reply kvec.
 	 * Any other kvecs that may be in use have been taken