ARM: shmobile: defconfig: Enable support for panels from EDT

The iwg20d comes with an LCD panel from Emerging Display
Technologies Corporation (EDT), therefore enable what's
required to support it.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://lore.kernel.org/r/1573660292-10629-12-git-send-email-fabrizio.castro@bp.renesas.com


Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>