crypto: marvell/cesa - add flag to determine algorithm endianness

Rather than determining whether we're using a MD5 hash by looking at
the digest size, switch to a cleaner solution using a per-request flag
initialised by the method type.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/marvell/cesa.h

@@ -612,6 +612,7 @@ struct mv_cesa_ahash_req {
 	u64 len;
 	int src_nents;
 	bool last_req;
+	bool algo_le;
 	u32 state[8];
 };