Update images for OpenShift SDN egress router pods

- https://bugzilla.redhat.com/show_bug.cgi?id=1934264

Author: jboxman

modules/nw-egress-router-pod.adoc

@@ -22,16 +22,15 @@ endif::[]
 :egress-router-image-url: registry.redhat.io/{egress-router-image-name}
 
 ifdef::http[]
-:egress-http-proxy-image-name: ose-egress-http-proxy
+:egress-http-proxy-image-name: openshift4/ose-egress-http-proxy
 :egress-http-proxy-image-url: registry.redhat.io/{egress-http-proxy-image-name}
 endif::[]
 ifdef::dns[]
 :egress-dns-proxy-image-name: openshift4/ose-egress-dns-proxy
 :egress-dns-proxy-image-url: registry.redhat.io/{egress-dns-proxy-image-name}
 endif::[]
-// After bz-1896170 switch to: openshift4/ose-pod
 ifdef::redirect[]
-:egress-pod-image-name: openshift3/ose-pod
+:egress-pod-image-name: openshift4/ose-pod
 :egress-pod-image-url: registry.redhat.io/{egress-pod-image-name}
 endif::[]