Increase Supernode pollrate (#984)

* Bump the OLSR poll rate on supernodes

files/etc/config.mesh/olsrd

@@ -8,6 +8,7 @@ config olsrd
 	option RtTableDefault '31'
 	option LinkQualityAlgorithm 'etx_ffeth'
 	option AllowNoInt 'yes'
+	option Pollrate '<olsrd_pollrate>'
 
 config LoadPlugin
 	option library 'olsrd_arprefresh.so.0.1'

files/usr/local/bin/node-setup

@@ -119,6 +119,7 @@ local cfg = {
     dtdlink_network_config = "",
     wifi_network_config = "",
     olsrd_dtd_interface_mode = "ether",
+    olsrd_pollrate = "0.05",
     tun_network_config = "",
     wireguard_network_config = ""
 }
@@ -194,6 +195,7 @@ end
 local is_supernode = (cm:get("aredn", "@supernode[0]", "enable") == "1")
 if is_supernode then
     cfg.olsrd_dtd_interface_mode = "isolated"
+    cfg.olsrd_pollrate = "0.01"
 end
 
 -- delete some config lines if necessary