luco-proto-ipv6: allow multiple prefixes for 6in4 and dhcpv6

Fixes FS#1361.
Signed-off-by: Jo-Philipp Wich <jo@mein.io>

protocols/luci-proto-ipv6/luasrc/model/cbi/admin_network/proto_6in4.lua

@@ -33,7 +33,7 @@ local ip6prefix = s:taboption("general", Value, "ip6prefix",
 	translate("IPv6 routed prefix"),
 	translate("This is the prefix routed to you by the tunnel broker for use by clients"))
 
-ip6prefix.datatype = "ip6addr"
+ip6prefix.datatype = "list(ip6addr)"
 
 
 local update = section:taboption("general", Flag, "_update",

protocols/luci-proto-ipv6/luasrc/model/cbi/admin_network/proto_dhcpv6.lua

@@ -38,7 +38,7 @@ o.default = o.enabled
 
 o = section:taboption("advanced", Value, "ip6prefix",
 	translate("Custom delegated IPv6-prefix"))
-o.dataype = "ip6addr"
+o.dataype = "list(ip6addr)"
 
 
 o = section:taboption("advanced", DynamicList, "dns",