Make some display related slices public.

Only PreferenceControllers with isPublicSlice() set to true are exposed
to other apps. Others will be Settings only.

Bug: 141088937
Test: robotests
Change-Id: I2a36da4ac4bb14a4d2ac7b89ab2bb3ebf8e655f7

tests/robotests/src/com/android/settings/display/AutoBrightnessDetailPreferenceControllerTest.java

@@ -51,6 +51,11 @@ public class AutoBrightnessDetailPreferenceControllerTest {
         assertThat(mController.isSliceable()).isTrue();
     }
 
+    @Test
+    public void isPublicSlice_returnTrue() {
+        assertThat(mController.isPublicSlice()).isTrue();
+    }
+
     @Test
     public void getAvailabilityStatus_configTrueSet_shouldReturnAvailable() {
         SettingsShadowResources.overrideResource(