fix: pass REVISION_NAME to downstream install script (#1048)

Co-authored-by: Bharath KKB <bharathkrishnakb@gmail.com>

Author: jtangney

Diff for: modules/asm/scripts/install_asm.sh

@@ -203,6 +203,12 @@ else
     CA_CERTS_COMMAND_SNIPPET="--ca_cert ${CA_CERT} --ca_key ${CA_KEY} --root_cert ${ROOT_CERT} --cert_chain ${CERT_CHAIN}"
 fi
 
+if [[ "${REVISION_NAME}" == "none" ]]; then
+    REVISION_NAME_COMMAND_SNIPPET=""
+else
+    REVISION_NAME_COMMAND_SNIPPET="--revision_name ${REVISION_NAME}"
+fi
+
 # Echo the command before executing
 echo -e "install_asm_${ASM_VERSION} --verbose --project_id ${PROJECT_ID} --cluster_name ${CLUSTER_NAME} --cluster_location ${CLUSTER_LOCATION} --mode ${MODE} ${MCP_COMMAND_SNIPPET} ${OPTIONS_COMMAND_SNIPPET} ${CUSTOM_OVERLAYS_COMMAND_SNIPPET} ${OUTDIR_COMMAND_SNIPPET} ${ENABLE_ALL_COMMAND_SNIPPET} ${ENABLE_CLUSTER_ROLES_COMMAND_SNIPPET} ${ENABLE_CLUSTER_LABELS_COMMAND_SNIPPET} ${ENABLE_GCP_COMPONENTS_COMMAND_SNIPPET} ${ENABLE_REGISTRATION_COMMAND_SNIPPET} ${ENABLE_NAMESPACE_CREATION_COMMAND_SNIPPET} ${CA_COMMAND_SNIPPET} ${CA_CERTS_COMMAND_SNIPPET} ${SERVICE_ACCOUNT_COMMAND_SNIPPET} ${KEY_FILE_COMMAND_SNIPPET} ${REVISION_NAME_COMMAND_SNIPPET}"