BigSwitch: Watchdog thread start after servers
BigSwitch: Watchdog thread start after servers

Start the watchdog thread after the servers have
been initialized.

Closes-Bug: #1293799
Change-Id: Ic7ae1f55bd7faed6edde84d9d0b52fc8fe7a1fc1

gkotton/vmware-nsx,gkotton/vmware-nsx