drm: panel: Set connector type for OrtusTech COM43H4M85ULC panel

The OrtusTech COM43H4M85ULC is a DPI panel, set the connector type
accordingly.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200309184210.10042-1-laurent.pinchart@ideasonboard.com