Fix some properties on the settings page read from ONC.

chromeos/test/data/network/shill_cellular_with_state.json

 {
+  "AutoConnect": true,
   "Type": "cellular",
   "Name": "Test Network",
   "Cellular.ActivationState": "activated",
   "Cellular.ActivationType": "OTASP",
   "Cellular.RoamingState": "home",
   "Cellular.ServingOperator": {
     "code": "test-code",
     "country": "test-country",
     "name" : "test-name"
   },
   "Cellular.APN": {
     "apn": "test-apn",
     "name": "test-apn-name",
     "username": "test-username",
     "password": "test-password"
   },
   "Device": {
     // This dictionary contains Device properties and not Service properties as
     // above.
     "Cellular.AllowRoaming": true,
     "Cellular.APNList": [
       {
-        "apn": "test-apn0",
-        "username": "test-username0",
-        "password": "test-password0"
+        "apn": "test-apn0",
+        "username": "test-username0",
+        "password": "test-password0"
       },
       {
-        "apn": "test-apn1",
-        "username": "test-username1",
-        "password": "test-password1"
+        "apn": "test-apn1",
+        "username": "test-username1",
+        "password": "test-password1"
       },
       {
-        "apn": "test-apn2",
-        "username": "test-username2",
-        "password": "test-password2"
+        "apn": "test-apn2",
+        "username": "test-username2",
+        "password": "test-password2"
       },
       {
-        "apn": "test-apn3",
-        "username": "test-username3",
-        "password": "test-password3"
+        "apn": "test-apn3",
+        "username": "test-username3",
+        "password": "test-password3"
       }
     ],
     "Cellular.HomeProvider": {
       "country": "us",
       "name": "cellular_provider"
     },
     "Cellular.SIMLockStatus": {
       "LockType": "sim-pin",
       "LockEnabled": true
     }
   },
   "Profile": "/profile/default",
 }