Switch to the rhel golang builder

This is for switching to the same compiler that we use for releases
in CI and will allow adding per PR FIPS testing.

Signed-off-by: Mrunal Patel <mrunalp@gmail.com>

ci-operator/config/openshift/origin/openshift-origin-release-4.3.yaml

@@ -31,15 +31,15 @@ images:
   inputs:
     bin:
       as:
-      - registry.svc.ci.openshift.org/ocp/builder:golang-1.12
+      - registry.svc.ci.openshift.org/ocp/builder:rhel-golang-1.12
       paths: null
   to: hyperkube
 - dockerfile_path: images/tests/Dockerfile.rhel
   from: cli
   inputs:
     bin:
       as:
-      - registry.svc.ci.openshift.org/ocp/builder:golang-1.12
+      - registry.svc.ci.openshift.org/ocp/builder:rhel-golang-1.12
       paths: null
   to: tests
 - context_dir: images/os/