ACPI: Use ACPI methods to select PCI device suspend state

applied after Rafel's 'PM: Update global suspend and hibernation
operations framework' patch set

Signed-off-by: Shaohua Li<shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

diff --cc drivers/pci/pci-acpi.c
Simple merge

diff --cc drivers/pci/pci.c
Simple merge

diff --cc drivers/pci/pci.h
Simple merge