PCI/ACPI: rename pci_osc_control_set()

- Rename pci_osc_control_set() to acpi_pci_osc_control_set() according
  to the other API names in drivers/acpi/pci_root.c.

- Move _OSC related definitions to include/linux/acpi.h because _OSC
  related API is implemented in drivers/acpi/pci_root.c now.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Reviewed-by: Andrew Patterson <andrew.patterson@hp.com>
Tested-by: Andrew Patterson <andrew.patterson@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
diff --git a/drivers/pci/hotplug/acpi_pcihp.c b/drivers/pci/hotplug/acpi_pcihp.c
index 1c11418..f47bc74 100644
--- a/drivers/pci/hotplug/acpi_pcihp.c
+++ b/drivers/pci/hotplug/acpi_pcihp.c
@@ -30,9 +30,8 @@
 #include <linux/types.h>
 #include <linux/pci.h>
 #include <linux/pci_hotplug.h>
+#include <linux/acpi.h>
 #include <linux/pci-acpi.h>
-#include <acpi/acpi.h>
-#include <acpi/acpi_bus.h>
 
 #define MY_NAME	"acpi_pcihp"
 
@@ -408,7 +407,7 @@
 		acpi_get_name(handle, ACPI_FULL_PATHNAME, &string);
 		dbg("Trying to get hotplug control for %s\n",
 				(char *)string.pointer);
-		status = pci_osc_control_set(handle, flags);
+		status = acpi_pci_osc_control_set(handle, flags);
 		if (ACPI_SUCCESS(status))
 			goto got_one;
 		kfree(string.pointer);