4.9-stable patches

4.9-stable patches

added patches:
	btrfs-fix-fsync-of-files-with-multiple-hard-links-in-new-directories.patch
	btrfs-run-delayed-items-before-dropping-the-snapshot.patch
	cdc-acm-fix-abnormal-data-rx-issue-for-mediatek-preloader.patch
	clk-rockchip-fix-typo-in-rk3188-spdif_frac-parent.patch
	ext4-check-for-shutdown-and-r-o-file-system-in-ext4_write_inode.patch
	ext4-fix-ext4_ioc_group_add-ioctl.patch
	ext4-fix-possible-use-after-free-in-ext4_quota_enable.patch
	ext4-force-inode-writes-when-nfsd-calls-commit_metadata.patch
	ext4-include-terminating-u32-in-size-of-xattr-entries-when-expanding-inodes.patch
	ext4-missing-unlock-put_page-in-ext4_try_to_write_inline_data.patch
	perf-pmu-suppress-potential-format-truncation-warning.patch
	platform-msi-free-descriptors-in-platform_msi_domain_free.patch
	powerpc-tm-set-msr-just-prior-to-recheckpoint.patch
	spi-bcm2835-avoid-finishing-transfer-prematurely-in-irq-mode.patch
	spi-bcm2835-fix-book-keeping-of-dma-termination.patch
	spi-bcm2835-fix-race-on-dma-termination.patch