Add integration_type hub to control4 (home-assistant#158900)

Author: joostlek

homeassistant/components/control4/manifest.json

@@ -4,6 +4,7 @@
   "codeowners": ["@lawtancool"],
   "config_flow": true,
   "documentation": "https://www.home-assistant.io/integrations/control4",
+  "integration_type": "hub",
   "iot_class": "local_polling",
   "loggers": ["pyControl4"],
   "requirements": ["pyControl4==1.5.0"],