[CRYPTO] authenc: Select HASH in Kconfig

i get here:

----
  LD      vmlinux
  SYSMAP  System.map
  SYSMAP  .tmp_System.map
  Building modules, stage 2.
  MODPOST 226 modules
ERROR: "crypto_hash_type" [crypto/authenc.ko] undefined!
make[1]: *** [__modpost] Error 1
make: *** [modules] Error 2
---

which fails because crypto_hash_type is declared in crypto/hash.c. You might wanna
fix it like so:

Signed-off-by: Borislav Petkov <bbpetkov@yahoo.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

crypto/Kconfig

@@ -532,6 +532,7 @@ config CRYPTO_AUTHENC
 	tristate "Authenc support"
 	select CRYPTO_AEAD
 	select CRYPTO_MANAGER
+	select CRYPTO_HASH
 	help
 	  Authenc: Combined mode wrapper for IPsec.
 	  This is required for IPSec.