crypto: shash - Remove usage of CRYPTO_MINALIGN

The macro CRYPTO_MINALIGN is not meant to be used directly.  This
patch replaces it with crypto_tfm_ctx_alignment.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/crypto/shash.c b/crypto/shash.c
index 91f7b9d..22fd943 100644
--- a/crypto/shash.c
+++ b/crypto/shash.c
@@ -37,7 +37,7 @@
 	u8 *buffer, *alignbuffer;
 	int err;
 
-	absize = keylen + (alignmask & ~(CRYPTO_MINALIGN - 1));
+	absize = keylen + (alignmask & ~(crypto_tfm_ctx_alignment() - 1));
 	buffer = kmalloc(absize, GFP_KERNEL);
 	if (!buffer)
 		return -ENOMEM;