tty: serial: 8250: Cleanup MOXA configurations

To improve clarity, clean up the MOXA configurations within
serial_pci_tbl using PCI_VDEVICE().

Signed-off-by: Crescent CY Hsieh <crescentcy.hsieh@moxa.com>
Reviewed-by: Jiri Slaby <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20231018091739.10125-3-crescentcy.hsieh@moxa.com


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