drm/panel-edp: Change BOE NV140WUM-N64 timings

drm/panel-edp: Change BOE NV140WUM-N64 timings

This screen timing requires a backlight off time of more than 100ms
from the end of the data stream to avoid screen flickering and red
light caused by screen material limitations.

Signed-off-by: Haikun Zhou <zhouhaikun5@huaqin.corp-partner.google.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patch.msgid.link/20260226083235.2176689-1-zhouhaikun5@huaqin.corp-partner.google.com