crypto: simd - Add simd skcipher helper

This patch adds the simd skcipher helper which is meant to be
a replacement for ablk helper.  It replaces the underlying blkcipher
interface with skcipher, and also presents the top-level algorithm
as an skcipher.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 2a9c73c..ae4960f 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -246,6 +246,10 @@
 	tristate
 	select CRYPTO_CRYPTD
 
+config CRYPTO_SIMD
+	tristate
+	select CRYPTO_CRYPTD
+
 config CRYPTO_GLUE_HELPER_X86
 	tristate
 	depends on X86