Add integration_type service to eafm (home-assistant#158937)

Author: joostlek

homeassistant/components/eafm/manifest.json

@@ -4,6 +4,7 @@
   "codeowners": ["@Jc2k"],
   "config_flow": true,
   "documentation": "https://www.home-assistant.io/integrations/eafm",
+  "integration_type": "service",
   "iot_class": "cloud_polling",
   "loggers": ["aioeafm"],
   "requirements": ["aioeafm==0.1.2"]

homeassistant/generated/integrations.json

@@ -1508,7 +1508,7 @@
     },
     "eafm": {
       "name": "Environment Agency Flood Gauges",
-      "integration_type": "hub",
+      "integration_type": "service",
       "config_flow": true,
       "iot_class": "cloud_polling"
     },