QS: add Sync tile (2/2)

    <string name="qs_tile_usb_tether">USB tethering</string>

    <string name="qs_tile_heads_up">Heads up</string>

    <string name="qs_tile_ambient_display">Ambient display</string>

    <string name="qs_tile_sync">Sync</string>

    <string name="qs_main_tiles_title">Enlarge first row</string>

    <string name="qs_main_tiles_summary_on">Two main tiles on the first row</string>

                resourceName = "ic_qs_ambientdisplay_on";

                stringId = R.string.qs_tile_ambient_display;

                break;

            case QSConstants.TILE_SYNC:

                resourceName = "ic_qs_sync_on";

                stringId = R.string.qs_tile_sync;

                break;

            default:

                return null;

        }