4.9-stable patches

4.9-stable patches

added patches:
	powerpc-64-add-macros-for-annotating-the-destination-of-rfid-hrfid.patch
	powerpc-64-convert-fast_exception_return-to-use-rfi_to_user-kernel.patch
	powerpc-64-convert-the-syscall-exit-path-to-use-rfi_to_user-kernel.patch
	powerpc-64s-add-support-for-rfi-flush-of-l1-d-cache.patch
	powerpc-64s-allow-control-of-rfi-flush-via-debugfs.patch
	powerpc-64s-convert-slb_miss_common-to-use-rfi_to_user-kernel.patch
	powerpc-64s-support-disabling-rfi-flush-with-no_rfi_flush-and-nopti.patch
	powerpc-64s-wire-up-cpu_show_meltdown.patch
	powerpc-powernv-check-device-tree-for-rfi-flush-settings.patch
	powerpc-pseries-add-h_get_cpu_characteristics-flags-wrapper.patch
	powerpc-pseries-query-hypervisor-for-rfi-flush-settings.patch