Merge "Marks clock view in preview as not important for Talkback" into udc-dev

        <com.android.customization.picker.clock.ui.view.ClockHostView

            android:id="@+id/clock_host_view"

            android:importantForAccessibility="noHideDescendants"

            android:layout_width="match_parent"

            android:layout_height="match_parent"

            android:layout_gravity="center" />