fff-dhcp: Do not generate dns records for local hostname

By default OpenWRT generates A and AAAA records for the routers
hostname. This might interferes with upstream records and breaks when
DNSSEC is utilized.

Therefore, disable this features.

Signed-off-by: Fabian Bläse <fabian@blaese.de>

src/packages/fff/fff-dhcp/files/etc/uci-defaults/90-fff-dhcp

@@ -26,6 +26,12 @@ uci batch >/dev/null <<EOF
   set dhcp.@dnsmasq[-1].noresolv='1'
   set dhcp.@dnsmasq[-1].localservice='1'
 
+  # do not generate A or AAAA records for the routers hostname,
+  # because this might interfere with upstream records.
+  #
+  # e.g. hostname: 'router.fff.community'
+  set dhcp.@dnsmasq[-1].add_local_fqdn='0'
+
   set dhcp.client=dhcp
   set dhcp.client.interface='client'
   set dhcp.client.leasetime='1h'