switch contacts.wm to misc-web-lb.eqiad

in change  I5f78ce2c95f77 the config
is added to make misc-web-lb send this to
zirconium as a backend


RT: 2087
RT: 7895


Change-Id: Ia87c36051af6682958fcee72e145c4735534fa28
Merge "switch contacts.wm to misc-web-lb.eqiad"