PCI: microchip: Add a missing semicolon

PCI: microchip: Add a missing semicolon

If the driver is configured as a module (after allowing this by changing
PCIE_MICROCHIP_HOST from bool to tristate) the missing semicolon makes the
compiler very unhappy. While there isn't a real problem as
MODULE_DEVICE_TABLE always evaluates to nothing for a built-in driver,
do it right for consistency with other drivers.

Link: https://lore.kernel.org/r/20220420065832.14173-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Daire McNamara <daire.mcnamara@microchip.com>