[CRYPTO] api: Show async type

This patch adds an async field to /proc/crypto for ablkcipher and aead
algorithms.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/crypto/aead.c b/crypto/aead.c
index f5b1add..3a6f3f5 100644
--- a/crypto/aead.c
+++ b/crypto/aead.c
@@ -115,6 +115,8 @@
 	struct aead_alg *aead = &alg->cra_aead;
 
 	seq_printf(m, "type         : aead\n");
+	seq_printf(m, "async        : %s\n", alg->cra_flags & CRYPTO_ALG_ASYNC ?
+					     "yes" : "no");
 	seq_printf(m, "blocksize    : %u\n", alg->cra_blocksize);
 	seq_printf(m, "ivsize       : %u\n", aead->ivsize);
 	seq_printf(m, "maxauthsize  : %u\n", aead->maxauthsize);
@@ -169,6 +171,8 @@
 	struct aead_alg *aead = &alg->cra_aead;
 
 	seq_printf(m, "type         : nivaead\n");
+	seq_printf(m, "async        : %s\n", alg->cra_flags & CRYPTO_ALG_ASYNC ?
+					     "yes" : "no");
 	seq_printf(m, "blocksize    : %u\n", alg->cra_blocksize);
 	seq_printf(m, "ivsize       : %u\n", aead->ivsize);
 	seq_printf(m, "maxauthsize  : %u\n", aead->maxauthsize);