Disable managed services special access screens...

... on low ram devices.

- Remove them from the 'Special app access' screen
- Display an error message if an app intents directly to
them

Bug: 35219985
Test: visual, and runtest --path ManagedAccessSettingsLowRamTest.java,
when the device is in low ram mode and when it's not.
Change-Id: Ied919cb248ae56683a00e3492c4737dfd00449ac

src/com/android/settings/core/gateway/SettingsGateway.java

@@ -53,6 +53,7 @@ import com.android.settings.applications.PictureInPictureDetails;
 import com.android.settings.applications.PictureInPictureSettings;
 import com.android.settings.applications.ProcessStatsSummary;
 import com.android.settings.applications.ProcessStatsUi;
+import com.android.settings.applications.SpecialAccessSettings;
 import com.android.settings.applications.UsageAccessDetails;
 import com.android.settings.applications.VrListenerSettings;
 import com.android.settings.applications.WriteSettingsDetails;
@@ -189,6 +190,7 @@ public class SettingsGateway {
             DataUsageSummary.class.getName(),
             DreamSettings.class.getName(),
             UserSettings.class.getName(),
+            SpecialAccessSettings.class.getName(),
             NotificationAccessSettings.class.getName(),
             ZenAccessSettings.class.getName(),
             PrintSettingsFragment.class.getName(),