dt-bindings: display: bridge: Add ITE IT6263 LVDS to HDMI converter

Document ITE IT6263 LVDS to HDMI converter.

Product link:
https://www.ite.com.tw/en/product/cate1/IT6263



Signed-off-by: Liu Ying <victor.liu@nxp.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20241104032806.611890-10-victor.liu@nxp.com


Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>