media: mt9p031: Drop CONFIG_OF ifdeffery

media: mt9p031: Drop CONFIG_OF ifdeffery

Drop of_match_ptr() from mt9p031_i2c_driver and get rid of ugly CONFIG_OF
if check. This slightly increases the size of mt9p031_i2c_driver on non-OF
system and shouldn't be an issue.

Add mod_devicetable.h include.

It also allows, in case if needed, to enumerate this device via ACPI with
PRP0001 magic.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Link: https://lore.kernel.org/r/20230910160126.70122-3-biju.das.jz@bp.renesas.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>