[CRYPTO]: Use appropriate defaults if AH/ESP is enabled.

crypto/Kconfig

@@ -6,12 +6,14 @@ menu "Cryptographic options"
 
 config CRYPTO
 	bool "Cryptographic API"
+	default y if INET_AH=y || INET_AH=m || INET_ESP=y || INET_ESP=m
 	help
 	  This option provides the core Cryptographic API.
 
 config CRYPTO_HMAC
 	bool "HMAC support"
 	depends on CRYPTO
+	default y if INET_AH=y || INET_AH=m || INET_ESP=y || INET_ESP=m
 	help
 	  HMAC: Keyed-Hashing for Message Authentication (RFC2104).
 	  This is required for IPSec.
@@ -31,12 +33,14 @@ config CRYPTO_MD4
 config CRYPTO_MD5
 	tristate "MD5 digest algorithm"
 	depends on CRYPTO
+	default y if INET_AH=y || INET_AH=m || INET_ESP=y || INET_ESP=m
 	help
 	  MD5 message digest algorithm (RFC1321).
 
 config CRYPTO_SHA1
 	tristate "SHA1 digest algorithm"
 	depends on CRYPTO
+	default y if INET_AH=y || INET_AH=m || INET_ESP=y || INET_ESP=m
 	help
 	  SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).
 
@@ -52,6 +56,7 @@ config CRYPTO_SHA256
 config CRYPTO_DES
 	tristate "DES and Triple DES EDE cipher algorithms"
 	depends on CRYPTO
+	default y if INET_AH=y || INET_AH=m || INET_ESP=y || INET_ESP=m
 	help
 	  DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).