Set listDivider color for Panels

Default color for listDividers in dialogs (parent theme for
panels) is @null, so we set the color to match the horizontal
dividers. listDivider is used by slices to set the vertical
divider between the primary action and toggles.

Test: visual-only
Bug: 117804089
Change-Id: I8f89a103c65adfbd1e079b38dc5eaaa3d3b32326
1 file changed