3.18-stable patches

3.18-stable patches

added patches:
	blk-throttle-check-stats_cpu-before-reading-it-from-sysfs.patch
	btrfs-fix-fsync-data-loss-after-adding-hard-link-to-inode.patch
	btrfs-fix-leak-of-path-in-btrfs_find_item.patch
	btrfs-set-proper-message-level-for-skinny-metadata.patch
	clocksource-mtk-fix-race-conditions-in-probe-code.patch
	edac-amd64_edac-prevent-oops-with-16-memory-controllers.patch
	gpio-tps65912-fix-wrong-container_of-arguments.patch
	gpiolib-of-allow-of_gpiochip_find_and_xlate-to-find-more-than-one-chip-per-node.patch
	jffs2-fix-handling-of-corrupted-summary-length.patch
	libceph-fix-double-__remove_osd-problem.patch
	md-raid1-fix-read-balance-when-a-drive-is-write-mostly.patch
	md-raid5-fix-livelock-when-array-is-both-resyncing-and-degraded.patch
	metag-fix-kstk_eip-and-kstk_esp-macros.patch
	perf-tools-fix-probing-for-perf_flag_fd_cloexec-flag.patch
	samsung-laptop-add-use_native_backlight-quirk-and-enable-it-on-some-models.patch
	sb_edac-fix-detection-on-snb-machines.patch
	x86-efi-avoid-triple-faults-during-efi-mixed-mode-calls.patch
	x86-mm-aslr-fix-stack-randomization-on-64-bit-systems.patch
	x86-pmc-atom-assign-debugfs-node-as-soon-as-possible.patch
	xfs-fix-quota-type-in-quota-structures-when-reusing-quota-file.patch