* kame/kame/racoon: enable VPN negotiation again.
* kame/kame/racoon:
enable VPN negotiation again.

XXX AS before, racoon can NOT negotiate the socket based SA.

MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame