gluon-mesh-batman-adv-core: enable mesh_no_rebroadcast for Mesh-on-WAN/LAN

Ethernet links provide transitive connectivity in all but very unusual
setup, enable mesh_no_rebroadcast to reduce load for devices on links with
many nodes.

Fixes #652

package/gluon-mesh-batman-adv-core/files/lib/gluon/upgrade/330-gluon-mesh-batman-adv-core-mesh-on-wan

@@ -10,6 +10,7 @@ if not c:get('network', 'mesh_wan') then
             { ifname = 'br-wan'
             , proto  = 'batadv'
             , mesh   = 'bat0'
+            , mesh_no_rebroadcast = '1'
             , auto   = site.mesh_on_wan and 1 or 0
             })
 end

package/gluon-mesh-batman-adv-core/files/lib/gluon/upgrade/340-gluon-mesh-batman-adv-core-mesh-on-lan

@@ -27,6 +27,7 @@ if sysconfig.lan_ifname and not uci:get('network', 'mesh_lan') then
               { ifname  = sysconfig.lan_ifname
               , proto   = 'batadv'
               , mesh    = 'bat0'
+              , mesh_no_rebroadcast = '1'
               , macaddr = util.generate_mac(1, 1)
               , auto    = enable and 1 or 0
   })
@@ -34,4 +35,3 @@ if sysconfig.lan_ifname and not uci:get('network', 'mesh_lan') then
   uci:save('network')
   uci:commit('network')
 end
-