iegreview: Put iegreview.wikimedia.org behind misc-web-lb.eqiad

Requires: I0c1d670e9d77e6598058f95b792f0c6cb6aa24d0
Bug: 71597
RT: 8578
Change-Id: I1f6855cf5aed4c1f9224ee1a389fbc6ecb415aa3
Merge "iegreview: Put iegreview.wikimedia.org behind misc-web-lb.eqiad"