Merge branch 'devel/acpi-s3.v4.rebased' into uek2-merge

Merge branch 'devel/acpi-s3.v4.rebased' into uek2-merge

* devel/acpi-s3.v4.rebased:
  xen/pci:use hypercall PHYSDEVOP_restore_msi_ext to restore MSI/MSI-X vectors
  xen/acpi/sleep: Register to the acpi_suspend_lowlevel a callback.
  xen/acpi/sleep: Enable ACPI sleep via the __acpi_override_sleep
  xen/acpi: Domain0 acpi parser related platform hypercall
  xen: Utilize the restore_msi_irqs hook.
  x86/acpi/sleep: Provide registration for acpi_suspend_lowlevel.
  x86, acpi, tboot: Have a ACPI sleep override instead of calling tboot_sleep.
  x86: Expand the x86_msi_ops to have a restore MSIs.

Conflicts:
	drivers/xen/Makefile
	include/xen/interface/physdev.h
	include/xen/interface/platform.h