gpio: pci-idio-16: Replace deprecated PCI functions

gpio: pci-idio-16: Replace deprecated PCI functions

pcim_iomap_regions() and pcim_iomap_table() have been deprecated in
commit e354bb84a4c1 ("PCI: Deprecate pcim_iomap_table(),
pcim_iomap_regions_request_all()"). Replace these functions with
pcim_iomap_region().

In order to match the rest of the code in idio_16_probe(), utilize
dev_err_probe() to handle error for pcim_enable_device().

Signed-off-by: William Breathitt Gray <wbg@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20241101-pci_iomap_region_gpio_acces-v1-1-26eb1dc93e45@kernel.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>