serial: 8250_mid: Get rid of custom MID_DEVICE() macro

Since PCI core provides a generic PCI_DEVICE_DATA() macro,
replace MID_DEVICE() with former one.

No functional change intended.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220215104126.7220-1-andriy.shevchenko@linux.intel.com


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