Require full compile and all tests for iOS bot config changes

BUG=464046

Review URL: https://codereview.chromium.org/983453002

Cr-Commit-Position: refs/heads/master@{#319212}

testing/buildbot/trybot_analyze_config.json

@@ -41,5 +41,10 @@
       "tools/perf/.*",
       "tools/telemetry/.*"
     ]
+  },
+  "ios": {
+    "exclusions": [
+      "ios/build/bots/.*"
+    ]
   }
 }