gpiolib-acpi: Update file references in the Documentation and MAINTAINERS

The recent changes in the gpiolib-acpi.c need also updates in the Documentation
and MAINTAINERS. Do the necessary changes here.

Fixes: babb541af627 ("gpiolib: acpi: Move quirks to a separate file")
Reported-by: Stephen Rothwell <[e-mail]>
Closes: https://lore.kernel.org/r/[e-mail]
Reviewed-by: Randy Dunlap <[e-mail]>
Tested-by: Randy Dunlap <[e-mail]>
Acked-by: Ilpo Järvinen <[e-mail]>
Signed-off-by: Andy Shevchenko <[e-mail]>

Documentation/driver-api/gpio/index.rst

···
 ACPI support
 ============
 
-.. kernel-doc:: drivers/gpio/gpiolib-acpi.c
+.. kernel-doc:: drivers/gpio/gpiolib-acpi-core.c
    :export:
 
 Device tree support

Documentation/translations/zh_CN/driver-api/gpio/index.rst

···
 
 该API在以下内核代码中:
 
-drivers/gpio/gpiolib-acpi.c
+drivers/gpio/gpiolib-acpi-core.c
 
 设备树支持
 ==========

MAINTAINERS

···
 S:	Supported
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-gpio-intel.git
 F:	Documentation/firmware-guide/acpi/gpio-properties.rst
-F:	drivers/gpio/gpiolib-acpi.c
+F:	drivers/gpio/gpiolib-acpi-*.c
 F:	drivers/gpio/gpiolib-acpi.h
 
 GPIO AGGREGATOR

drivers/platform/x86/intel/int0002_vgpio.c

···
  * ACPI mechanisms, this is not a real GPIO at all.
  *
  * This driver will bind to the INT0002 device, and register as a GPIO
- * controller, letting gpiolib-acpi.c call the _L02 handler as it would
+ * controller, letting gpiolib-acpi call the _L02 handler as it would
  * for a real GPIO controller.
  */