Use odhcp6c for interface configuration

package/gluon-core/Makefile

@@ -12,6 +12,7 @@ define Package/gluon-core
   SECTION:=gluon
   CATEGORY:=Gluon
   TITLE:=Base files of Gluon
+  DEPENDS:=+odhcp6c
 endef
 
 define Package/gluon-core/description

package/gluon-core/files/lib/gluon/upgrade/core/initial/011-gluon-network

@@ -15,8 +15,9 @@ set network.wan.auto='1'
 set network.client='interface'
 set network.client.ifname='$lan_ifname bat0'
 set network.client.type='bridge'
-set network.client.proto='none'
-set network.client.auto='1'
+set network.client.proto='dhcpv6'
+set network.client.reqprefix='no'
+set network.client.peerdns='0'
 
 set network.mesh='interface'
 set network.mesh.proto='batadv'