MGMT-15732: Add extra flag var for hypershift install (openshift#5469)

https://issues.redhat.com/browse/MGMT-15732
Hypershift install command can change or require
additional flags such as in this issue. This adds the
variable in case we need to pass such flags in the
future CI tests.

deploy/operator/capi/deploy_capi_cluster.sh

@@ -25,6 +25,7 @@ export LOAD_BALANCER_IP="${LOAD_BALANCER_IP:-192.168.111.1}"
 export HYPERSHIFT_IMAGE="${HYPERSHIFT_IMAGE:-quay.io/hypershift/hypershift-operator:latest}"
 export CONTROL_PLANE_OPERATOR_IMAGE="${CONTROL_PLANE_OPERATOR_IMAGE:-}"
 export PROVIDER_IMAGE="${PROVIDER_IMAGE:-}"
+export EXTRA_HYPERSHIFT_INSTALL_FLAGS="${EXTRA_HYPERSHIFT_INSTALL_FLAGS}"
 
 if [[ ${SPOKE_CONTROLPLANE_AGENTS} -eq 1 ]]; then
     export USER_MANAGED_NETWORKING="true"
@@ -109,7 +110,7 @@ function hypershift() {
 }
 
 echo "Installing HyperShift using upstream image"
-hypershift install --hypershift-image $HYPERSHIFT_IMAGE --namespace hypershift
+hypershift install --hypershift-image $HYPERSHIFT_IMAGE --namespace hypershift $EXTRA_HYPERSHIFT_INSTALL_FLAGS
 wait_for_pods "hypershift"
 
 if [ -z "$PROVIDER_IMAGE" ]

deploy/operator/hypershift/deploy_hypershift_cluster.sh

@@ -23,6 +23,7 @@ export CLUSTER_HOST_PREFIX="${CLUSTER_HOST_PREFIX_V4}"
 export EXTERNAL_SUBNET="${EXTERNAL_SUBNET_V4}"
 export SERVICE_SUBNET="${SERVICE_SUBNET_V4}"
 export PUBLIC_CONTAINER_REGISTRIES="${PUBLIC_CONTAINER_REGISTRIES:-quay.io}"
+export EXTRA_HYPERSHIFT_INSTALL_FLAGS="${EXTRA_HYPERSHIFT_INSTALL_FLAGS}"
 
 set -o nounset
 set -o pipefail
@@ -51,7 +52,7 @@ oc get namespace "${HYPERSHIFT_AGENT_NS}" || oc create namespace "${HYPERSHIFT_A
 oc patch storageclass assisted-service -p '{"metadata": {"annotations":{"storageclass.kubernetes.io/is-default-class":"true"}}}'
 
 echo "Installing HyperShift using upstream image"
-hypershift install --hypershift-image $HYPERSHIFT_IMAGE --namespace hypershift
+hypershift install --hypershift-image $HYPERSHIFT_IMAGE --namespace hypershift $EXTRA_HYPERSHIFT_INSTALL_FLAGS
 wait_for_pods "hypershift"
 
 echo "Creating HostedCluster"