Use manifest listed registry to support arm (#1428)

Author: jeffdyoung

common.sh

@@ -319,7 +319,7 @@ export VBMC_MAX_PORT=$((VBMC_BASE_PORT + NUM_MASTERS + NUM_WORKERS + NUM_EXTRA_W
 export REDFISH_EMULATOR_IGNORE_BOOT_DEVICE="${REDFISH_EMULATOR_IGNORE_BOOT_DEVICE:-False}"
 
 # Which docker registry image should we use?
-export DOCKER_REGISTRY_IMAGE=${DOCKER_REGISTRY_IMAGE:-"quay.io/libpod/registry:2"}
+export DOCKER_REGISTRY_IMAGE=${DOCKER_REGISTRY_IMAGE:-"quay.io/libpod/registry:2.8"}
 
 export KUBECONFIG="${SCRIPTDIR}/ocp/$CLUSTER_NAME/auth/kubeconfig"