gitreview: Update to reflect openswitch.net
gitreview: Update to reflect openswitch.net

This is needed to allow for a nice, easy "git review" experience
for governance repo code submitters.

Change-Id: Idcf73ddbab75305b47784f559dea7a6e7e3e70e1
Signed-off-by: Kyle Mestery <9cfbda34e625c7b0454bcb19a48d07c46f9097d2@mestery.com>

open-switch/governance