4.12-stable patches

4.12-stable patches

added patches:
	arm-dts-imx6qdl-nitrogen6_som2-fix-pcie-reset.patch
	blk-mq-pci-add-a-fallback-when-pci_irq_get_affinity-returns-null.patch
	genirq-ipi-fixup-checks-against-nr_cpu_ids.patch
	genirq-restore-trigger-settings-in-irq_modify_status.patch
	irqchip-atmel-aic-fix-unbalanced-of_node_put-in-aic_common_irq_fixup.patch
	irqchip-atmel-aic-fix-unbalanced-refcount-in-aic_common_rtc_irq_fixup.patch
	kernel-watchdog-prevent-false-positives-with-turbo-modes.patch
	mm-cma_debug.c-fix-stack-corruption-due-to-sprintf-usage.patch
	mm-fix-double-mmap_sem-unlock-on-mmf_unstable-enforced-sigbus.patch
	mm-mempolicy-fix-use-after-free-when-calling-get_mempolicy.patch
	mm-revert-x86_64-and-arm64-elf_et_dyn_base-base-changes.patch
	mm-vmalloc.c-don-t-unconditonally-use-__gfp_highmem.patch
	perf-x86-fix-rdpmc-vs.-mm_struct-tracking.patch
	powerpc-fix-vsx-enabling-flushing-to-also-test-msr_fp-and-msr_vec.patch
	x86-asm-64-clear-ac-on-nmi-entries.patch
	x86-elf-remove-the-unnecessary-addr_no_randomize-checks.patch
	x86-fix-norandmaps-addr_no_randomize.patch
	xen-blkfront-use-a-right-index-when-checking-requests.patch
	xen-fix-bio-vec-merging.patch