Added insteonplm device_override multiple capabilities (#9078)

.gitignore

@@ -94,3 +94,6 @@ docs/build
 
 # Windows Explorer
 desktop.ini
+/home-assistant.pyproj
+/home-assistant.sln
+/.vs/home-assistant/v14

homeassistant/components/insteon_plm.py

@@ -79,8 +79,12 @@ def async_setup(hass, config):
         #
         # Override the device default capabilities for a specific address
         #
-        plm.protocol.devices.add_override(
-            device['address'], 'capabilities', [device['platform']])
+        if isinstance(device['platform'], list):
+            plm.protocol.devices.add_override(
+                device['address'], 'capabilities', device['platform'])
+        else:
+            plm.protocol.devices.add_override(
+                device['address'], 'capabilities', [device['platform']])
 
     hass.data['insteon_plm'] = plm