match config file key for deploymentconfig and values.yaml

Author: dwasinge

deployment/values-dev.yaml

@@ -30,7 +30,7 @@ config:
     - name: hook2
       baseUrl: http://localhost/hook2
       token: anunoby
-  runtimeConfigFile:
+  configFile:
     path: /runtime
     name: lodestar-runtime-config.yaml