Make WebRTC ios FYI bots run ios_remoting_tests.

The bots will be even more useful if they run relevant tests.

Bug: 904452
Change-Id: I70182572d9508e519c000187194f443eeda82500
Reviewed-on: https://chromium-review.googlesource.com/c/1333808Reviewed-by: Olivier Robin <olivierrobin@chromium.org>
Reviewed-by: Justin Cohen <justincohen@chromium.org>
Commit-Queue: Patrik Höglund <phoglund@chromium.org>
Cr-Commit-Position: refs/heads/master@{#610554}

ios/build/bots/chromium.webrtc.fyi/WebRTC Chromium FYI ios-simulator.json

@@ -20,17 +20,17 @@
   "sdk": "iphonesimulator10.0",
   "tests": [
     {
-      "include": "common_tests.json",
+      "include": "webrtc_tests.json",
       "device type": "iPhone 6s Plus",
       "os": "11.4"
     },
     {
-      "include": "common_tests.json",
+      "include": "webrtc_tests.json",
       "device type": "iPhone 6s",
       "os": "11.4"
     },
     {
-      "include": "common_tests.json",
+      "include": "webrtc_tests.json",
       "device type": "iPad Air 2",
       "os": "11.4"
     }

ios/build/bots/tests/webrtc_tests.json

+{
+  "tests": [
+    {
+      "app": "ios_remoting_unittests"
+    }
+  ]
+}