media: atomisp: Remove input_port_ID_t

media: atomisp: Remove input_port_ID_t

Change the single, unexpected user of CSI_PORT0_ID

	for (port = CSI_PORT0_ID; port < N_CSI_PORTS; port++)

to

	for (port = 0; port < N_CSI_PORTS; port++) {

matching all the other for-loops iterating over the ports in
the same file.

And remove the now fully unused input_port_ID_t enum type.

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