Add waits on generate keys buttons to show up in TP tests (#4205)
Add waits on generate keys buttons to show up in TP tests (#4205)

* Add waits on generate keys buttons to show up in TP tests

* Use const instead of var

hbeatty/incubator-trafficcontrol,hbeatty/incubator-trafficcontrol,hbeatty/incubator-trafficcontrol,hbeatty/incubator-trafficcontrol,hbeatty/incubator-trafficcontrol,hbeatty/incubator-trafficcontrol,hbeatty/incubator-trafficcontrol,hbeatty/incubator-trafficcontrol,hbeatty/incubator-trafficcontrol,hbeatty/incubator-trafficcontrol