media: atomisp: Move MIPI_PORT_LANES to the only user

Move MIPI_PORT_LANES to the only user of it, i.e. pci/runtime/isys/src/rx.c.

Link: https://lore.kernel.org/linux-media/20210713152523.19902-4-andriy.shevchenko@linux.intel.com


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