serial: 8250_mid: Remove 8250_pci usage

8250_mid uses FL_*BASE* from linux/8250_pci.h and nothing else. The
code can be simplified by directly defining BARs within the driver
instead.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20230915094336.13278-1-ilpo.jarvinen@linux.intel.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>