LXC from native: convert phys network types to net hostdev devices

tests/lxcconf2xmldata/lxcconf2xml-physnetwork.config

@@ -0,0 +1,6 @@
+lxc.network.type = phys
+lxc.network.link = eth0
+
+lxc.rootfs = /var/lib/lxc/migrate_test/rootfs
+lxc.utsname = migrate_test
+lxc.autodev=1

tests/lxcconf2xmldata/lxcconf2xml-physnetwork.xml

@@ -0,0 +1,26 @@
+<domain type='lxc'>
+  <name>migrate_test</name>
+  <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
+  <memory unit='KiB'>65536</memory>
+  <currentMemory unit='KiB'>0</currentMemory>
+  <vcpu placement='static' current='0'>1</vcpu>
+  <os>
+    <type>exe</type>
+    <init>/sbin/init</init>
+  </os>
+  <clock offset='utc'/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>destroy</on_crash>
+  <devices>
+    <filesystem type='mount' accessmode='passthrough'>
+      <source dir='/var/lib/lxc/migrate_test/rootfs'/>
+      <target dir='/'/>
+    </filesystem>
+    <hostdev mode='capabilities' type='net'>
+      <source>
+        <interface>eth0</interface>
+      </source>
+    </hostdev>
+  </devices>
+</domain>