dt-bindings: display: bridge: Document THC63LVD1024 LVDS decoder

Document Thine THC63LVD1024 LVDS decoder device tree bindings.

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1524062429-325-2-git-send-email-jacopo+renesas@jmondi.org
Link: https://patchwork.freedesktop.org/patch/msgid/1524062429-325-2-git-send-email-jacopo+renesas@jmondi.org