[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/auth_null.c b/net/sunrpc/auth_null.c
index 2eccffa..3be257d 100644
--- a/net/sunrpc/auth_null.c
+++ b/net/sunrpc/auth_null.c
@@ -60,8 +60,8 @@
 /*
  * Marshal credential.
  */
-static u32 *
-nul_marshal(struct rpc_task *task, u32 *p)
+static __be32 *
+nul_marshal(struct rpc_task *task, __be32 *p)
 {
 	*p++ = htonl(RPC_AUTH_NULL);
 	*p++ = 0;
@@ -81,8 +81,8 @@
 	return 0;
 }
 
-static u32 *
-nul_validate(struct rpc_task *task, u32 *p)
+static __be32 *
+nul_validate(struct rpc_task *task, __be32 *p)
 {
 	rpc_authflavor_t	flavor;
 	u32			size;