Add ingress rate limit to developer settings

Test: make -j64 RunSettingsRoboTests
ROBOTEST_FILTER="com.android.settings.development.IngressRateLimitPreferenceControllerTest"
Bug: 157552970
Bug: 122993151

Change-Id: I0d0aa40610016c1f9e94596cfe3ed6c9a0614d89
Merged-In: I0d0aa40610016c1f9e94596cfe3ed6c9a0614d89
(cherry picked from commit b0e5e84d49)

src/com/android/settings/development/DevelopmentSettingsDashboardFragment.java

@@ -585,6 +585,7 @@ public class DevelopmentSettingsDashboardFragment extends RestrictedDashboardFra
         controllers.add(new SharedDataPreferenceController(context));
         controllers.add(new OverlaySettingsPreferenceController(context));
         controllers.add(new StylusHandwritingPreferenceController(context));
+        controllers.add(new IngressRateLimitPreferenceController((context)));
 
         return controllers;
     }