You can run these commands:
esxcfg-vswitch -A serviceconsole vSwitch0
esxcfg-vswif -a -i 192.168.0.2 -n 255.255.255.0 -p serviceconsole vswif0
That should be it. The new interface is vswif0 rather than eth0.
This problem is common among upgrades that have 2 nics shared between the service console / vmkernel.