misc: microchip: pci1xxxx: Make symbol 'pci1xxxx_gpio_auxiliary_id_table' static

The sparse tool complains as follows:

drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gpio.c:409:34: warning:
 symbol 'pci1xxxx_gpio_auxiliary_id_table' was not declared. Should it be static?

This symbol is not used outside of mchp_pci1xxxx_gpio.c, so marks it static.

Fixes: 7d3e4d80 ("misc: microchip: pci1xxxx: load gpio driver for the gpio controller auxiliary device enumerated by the auxiliary bus driver.")
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Kumaravel Thiagarajan <kumaravel.thiagarajan@microchip.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20220907145808.1789249-3-weiyongjun@huaweicloud.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gpio.c

@@ -407,7 +407,7 @@ static int pci1xxxx_gpio_probe(struct auxiliary_device *aux_dev,
 
 static SIMPLE_DEV_PM_OPS(pci1xxxx_gpio_pm_ops, pci1xxxx_gpio_suspend, pci1xxxx_gpio_resume);
 
-const struct auxiliary_device_id pci1xxxx_gpio_auxiliary_id_table[] = {
+static const struct auxiliary_device_id pci1xxxx_gpio_auxiliary_id_table[] = {
 	{.name = "mchp_pci1xxxx_gp.gp_gpio"},
 	{}
 };