[IPSEC]: Use crypto_aead and authenc in ESP
This patch converts ESP to use the crypto_aead interface and in particular
the authenc algorithm.  This lays the foundations for future support of
combined mode algorithms.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/Kconfig b/net/ipv6/Kconfig
index eb0b808..3ffb032 100644
--- a/net/ipv6/Kconfig
+++ b/net/ipv6/Kconfig
@@ -85,6 +85,7 @@
 	depends on IPV6
 	select XFRM
 	select CRYPTO
+	select CRYPTO_AEAD
 	select CRYPTO_HMAC
 	select CRYPTO_MD5
 	select CRYPTO_CBC