busybox: fix previous commit, make CONFIG_BUSYBOX_CONFIG_FEATURE_IPV6 default to CONFIG_IPV6, not depend on it

SVN-Revision: 29789

package/busybox/config/networking/Config.in

@@ -102,8 +102,7 @@ config BUSYBOX_CONFIG_WHOIS
 
 config BUSYBOX_CONFIG_FEATURE_IPV6
 	bool "Enable IPv6 support"
-	default y
-	depends on IPV6
+	default IPV6
 	help
 	  Enable IPv6 support in busybox.
 	  This adds IPv6 support in the networking applets.