4.2-stable patches

4.2-stable patches

added patches:
	block-blkg_destroy_all-should-clear-q-root_blkg-and-root_rl.blkg.patch
	blockdev-don-t-set-s_dax-for-misaligned-partitions.patch
	dax-fix-o_direct-i-o-to-the-last-block-of-a-blockdev.patch
	dmaengine-at_xdmac-change-block-increment-addressing-mode.patch
	dmaengine-at_xdmac-clean-used-descriptor.patch
	dmaengine-at_xdmac-fix-bug-in-prep_dma_cyclic.patch
	dmaengine-dw-properly-read-dwc_params-register.patch
	dmaengine-pxa_dma-fix-initial-list-move.patch
	pmem-add-proper-fencing-to-pmem_rw_page.patch
	x86-alternatives-make-optimize_nops-interrupt-safe-and-synced.patch
	x86-apic-serialize-lvtt-and-tsc_deadline-writes.patch
	x86-ioapic-force-affinity-setting-in-setup_ioapic_dest.patch
	x86-pci-intel_mid_pci-work-around-for-irq0-assignment.patch
	x86-platform-fix-geode-lx-timekeeping-in-the-generic-x86-build.patch