add some dhcp-on-wired-looking-things default netplan for the server live image

live-build/ubuntu-server/includes.binary/etc/netplan/00-installer-config.yaml

@@ -0,0 +1,13 @@
+# This is the initial network config.
+# It can be overwritten by cloud-init or subiquity.
+network:
+    version: 2
+    ethernets:
+        all-en:
+            match:
+                name: "en*"
+            dhcp4: true
+        all-eth:
+            match:
+                name: "eth*"
+            dhcp4: true