Wifi assist test case where road has a wifi and lte connection
up with each conn getting its own IP address.

It shows a problem on east:

root@east ~]# ip xfrm pol
src 192.0.2.0/24 dst 100.64.0.2/32 
	dir out priority 1042399 ptype main 
	tmpl src 192.1.2.23 dst 192.1.2.254
		proto esp reqid 16393 mode tunnel
src 192.0.2.0/24 dst 100.64.0.1/32 
	dir out priority 1042399 ptype main 
	tmpl src 192.1.2.23 dst 192.1.2.254
		proto esp reqid 16393 mode tunnel
src 100.64.0.1/32 dst 192.0.2.0/24 
	dir fwd priority 1042399 ptype main 
	tmpl src 192.1.2.254 dst 192.1.2.23
		proto esp reqid 16393 mode tunnel
src 100.64.0.1/32 dst 192.0.2.0/24 
	dir in priority 1042399 ptype main 
	tmpl src 192.1.2.254 dst 192.1.2.23
		proto esp reqid 16393 mode tunnel


It's lacking a fwd and an in policy ......