[CRYPTO] Use standard byte order macros wherever possible

A lot of crypto code needs to read/write a 32-bit/64-bit words in a
specific gender.  Many of them open code them by reading/writing one
byte at a time.  This patch converts all the applicable usages over
to use the standard byte order macros.

This is based on a previous patch by Denis Vlasenko.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

crypto/md5.c

@@ -19,6 +19,7 @@
 #include <linux/module.h>
 #include <linux/string.h>
 #include <linux/crypto.h>
+#include <linux/types.h>
 #include <asm/byteorder.h>
 
 #define MD5_DIGEST_SIZE		16