am d9609fc0: Fix jank after adding a widget for lock screen

        android:id="@+id/layout_root"

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        android:layout_marginLeft="@dimen/keyguard_appwidget_picker_margin_left"

        android:layout_marginRight="@dimen/keyguard_appwidget_picker_margin_right"

        android:paddingLeft="@dimen/keyguard_appwidget_picker_margin_left"

        android:paddingRight="@dimen/keyguard_appwidget_picker_margin_right"

        android:paddingTop="2dip"

        android:paddingBottom="2dip"

        android:orientation="vertical" >