media: atomisp: Drop MRFLD_PORT_NUM define

The info in the MRFLD_PORT_NUM define is duplicate with
the ATOMISP_CAMERA_NR_PORTS and N_MIPI_PORT_ID enum values.

Drop the MRFLD_PORT_NUM define and switch to N_MIPI_PORT_ID
since the [sensor_]lanes arrays are in enum mipi_port_id order.

Link: https://lore.kernel.org/r/20230518153733.195306-2-hdegoede@redhat.com

Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

media: atomisp: move CCK endpoint address to generic header

IOSF MBI header contains a lot of definitions, such as
end point addresses of IPs. Move CCK address from AtomISP driver
to generic header.

While here, drop unused one.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

media: atomisp: add SPDX headers

This driver is licensed under GPL 2.0, as stated inside their
headers.

Add the proper tag there. We should probably latter cleanup
the reduntant licensing text, but this could be done later,
after we get rid of other abstraction layers.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

media: atomisp: cleanup directory hierarchy

This driver has very long directories without a good
reason (IMHO). Let's drop two directories from such hierarchy,
in order to simplify things a little bit and make the dir
output a bit more readable.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>