[CRYPTO] skcipher: Added geniv field

This patch introduces the geniv field which indicates the default IV
generator for each algorithm.  It should point to a string that is not
freed as long as the algorithm is registered.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/crypto/blkcipher.c b/crypto/blkcipher.c
index 7939504..7a3e1a3 100644
--- a/crypto/blkcipher.c
+++ b/crypto/blkcipher.c
@@ -496,6 +496,8 @@
 	seq_printf(m, "min keysize  : %u\n", alg->cra_blkcipher.min_keysize);
 	seq_printf(m, "max keysize  : %u\n", alg->cra_blkcipher.max_keysize);
 	seq_printf(m, "ivsize       : %u\n", alg->cra_blkcipher.ivsize);
+	seq_printf(m, "geniv        : %s\n", alg->cra_blkcipher.geniv ?:
+					     "<default>");
 }
 
 const struct crypto_type crypto_blkcipher_type = {