Pull ACPI fix from Rafael Wysocki:
 "This fixes an ACPICA utilities (acpidump) build regression from the
  4.16 cycle by setting LD in the CFLAGS passed to the linker to $(CC)
  again (Jiri Slaby)"

* tag 'acpi-4.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  tools: power/acpi, revert to LD = gcc