ACPI: x86: Move LPSS to x86 folder

LPSS is built solely for x86, move it to the respective folder.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/acpi/Makefile

@@ -45,7 +45,6 @@ acpi-y				+= ec.o
 acpi-$(CONFIG_ACPI_DOCK)	+= dock.o
 acpi-$(CONFIG_PCI)		+= pci_root.o pci_link.o pci_irq.o
 obj-$(CONFIG_ACPI_MCFG)		+= pci_mcfg.o
-acpi-$(CONFIG_PCI)		+= acpi_lpss.o
 acpi-y				+= acpi_apd.o
 acpi-y				+= acpi_platform.o
 acpi-y				+= acpi_pnp.o

drivers/acpi/internal.h

@@ -69,7 +69,8 @@ void acpi_debugfs_init(void);
 #else
 static inline void acpi_debugfs_init(void) { return; }
 #endif
-#ifdef CONFIG_PCI
+
+#if defined(CONFIG_X86) && defined(CONFIG_PCI)
 void acpi_lpss_init(void);
 #else
 static inline void acpi_lpss_init(void) {}

drivers/acpi/x86/Makefile

 obj-$(CONFIG_ACPI)	+= acpi-x86.o
 acpi-x86-y		+= apple.o
 acpi-x86-y		+= cmos_rtc.o
+acpi-x86-$(CONFIG_PCI)	+= lpss.o
 acpi-x86-y		+= s2idle.o
 acpi-x86-y		+= utils.o
 

drivers/acpi/acpi_lpss.c → drivers/acpi/x86/lpss.c

@@ -25,7 +25,7 @@
 #include <linux/suspend.h>
 #include <linux/delay.h>
 
-#include "internal.h"
+#include "../internal.h"
 
 #ifdef CONFIG_X86_INTEL_LPSS