[PATCH -next] gpio: GPIO_SCH: depends on PCI same as LPC_SCH

[Randy Dunlap <rdunlap@xxxxxxxxxxxxx>]

Since LPC_SCH depends on PCI, GPIO_SCH must also depend on PCI
to prevent kconfig warning and build errors:

WARNING: unmet direct dependencies detected for LPC_SCH
  Depends on [n]: HAS_IOMEM [=y] && PCI [=n]
  Selected by [y]:
  - GPIO_SCH [=y] && GPIOLIB [=y] && X86 [=y] && (X86 [=y] || COMPILE_TEST [=n]) && ACPI [=y]

and

../drivers/mfd/lpc_sch.c:204:1: warning: data definition has no type or storage class
 module_pci_driver(lpc_sch_driver);
 ^~~~~~~~~~~~~~~~~
../drivers/mfd/lpc_sch.c:204:1: error: type defaults to ‘int’ in declaration of ‘module_pci_driver’ [-Werror=implicit-int]
../drivers/mfd/lpc_sch.c:204:1: warning: parameter names (without types) in function declaration
../drivers/mfd/lpc_sch.c:197:26: warning: ‘lpc_sch_driver’ defined but not used [-Wunused-variable]
 static struct pci_driver lpc_sch_driver = {
                          ^~~~~~~~~~~~~~

Fixes: 6c46215d6b62 ("gpio: sch: Hook into ACPI GPE handler to catch GPIO edge events")
Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Cc: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Cc: Linus Walleij <linus.walleij@xxxxxxxxxx>
Cc: linux-gpio@xxxxxxxxxxxxxxx
Cc: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
Cc: Denis Turischev <denis@xxxxxxxxxxxxxx>
---
 drivers/gpio/Kconfig |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- linux-next-20210401.orig/drivers/gpio/Kconfig
+++ linux-next-20210401/drivers/gpio/Kconfig
@@ -860,7 +860,7 @@ config GPIO_IT87
 
 config GPIO_SCH
 	tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
-	depends on (X86 || COMPILE_TEST) && ACPI
+	depends on (X86 || COMPILE_TEST) && ACPI && PCI
 	select GPIOLIB_IRQCHIP
 	select MFD_CORE
 	select LPC_SCH