ACPICA: Obsolete the acpi_os_derive_pci_id OSL interface

This function is not OS-dependent and has been replaced by
acpi_hw_derive_pci_id, which is now in the ACPICA core code.  Local
implementations of acpi_os_derive_pci_id are no longer necessary and
are removed. ACPICA BZ 857.

http://www.acpica.org/bugzilla/show_bug.cgi?id=857

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

drivers/acpi/acpica/achware.h

@@ -122,6 +122,13 @@ acpi_hw_enable_runtime_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
 				 void *context);
 
 #ifdef	ACPI_FUTURE_USAGE
+/*
+ * hwpci - PCI configuration support
+ */
+acpi_status
+acpi_hw_derive_pci_id(struct acpi_pci_id *pci_id,
+		      acpi_handle root_pci_device, acpi_handle pci_region);
+
 /*
  * hwtimer - ACPI Timer prototypes
  */