Rename duration scale hint types in xml

            <enum name="noScale" value="0"/>

            <!-- This should be used when the animation's moving distance is proportional to screen,

                 as the scaling is based on screen size. -->

            <enum name="screen" value="1"/>

            <enum name="screenBased" value="1"/>

            <!-- This is for animations that have a distance defined in dp, which will be the same

                 across different devices. In this case, scaling is based on the physical distance

                 per dp on the current device. -->

            <enum name="dp" value="2"/>

            <enum name="dpBased" value="2"/>

        </attr>

    </declare-styleable>