Support some phone information in Settings slice

- Android version
- Device model

Test: robo test, manual test
Change-Id: Ic047caaf4ab699082f6420ad8fa1d2f455abfcb0
Fixes: 74900516

src/com/android/settings/deviceinfo/DeviceModelPreferenceController.java

@@ -73,6 +73,11 @@ public class DeviceModelPreferenceController extends BasePreferenceController {
         return true;
     }
 
+    @Override
+    public boolean isSliceable() {
+        return true;
+    }
+
     public static String getDeviceModel() {
         FutureTask<String> msvSuffixTask = new FutureTask<String>(new Callable<String>() {
             @Override

src/com/android/settings/deviceinfo/firmwareversion/FirmwareVersionPreferenceController.java

@@ -56,4 +56,9 @@ public class FirmwareVersionPreferenceController extends BasePreferenceControlle
         FirmwareVersionDialogFragment.show(mFragment);
         return true;
     }
+
+    @Override
+    public boolean isSliceable() {
+        return true;
+    }
 }