4.19-stable patches

4.19-stable patches

added patches:
	btrfs-drop-the-lock-on-error-in-btrfs_dev_replace_cancel.patch
	btrfs-ensure-that-a-dup-or-raid1-block-group-has-exactly-two-stripes.patch
	btrfs-fix-corruption-reading-shared-and-compressed-extents-after-hole-punching.patch
	btrfs-setup-a-nofs-context-for-memory-allocation-at-__btrfs_set_acl.patch
	btrfs-setup-a-nofs-context-for-memory-allocation-at-btrfs_create_tree.patch
	clocksource-drivers-arch_timer-workaround-for-allwinner-a64-timer-instability.patch
	clocksource-drivers-exynos_mct-clear-timer-interrupt-when-shutdown.patch
	clocksource-drivers-exynos_mct-move-one-shot-check-from-tick-clear-to-isr.patch
	fs-devpts-always-delete-dcache-dentry-s-in-dput.patch
	m68k-add-ffreestanding-to-cflags.patch
	mmc-fix-a-bug-when-max_discard-is-0.patch
	mmc-sdhci-esdhc-imx-fix-hs400-timing-issue.patch
	netfilter-ipt_clusterip-fix-warning-unused-variable-cn.patch
	ovl-do-not-lose-security.capability-xattr-over-metadata-file-copy-up.patch
	ovl-during-copy-up-first-copy-up-data-and-then-xattrs.patch
	regulator-max77620-initialize-values-for-dt-properties.patch
	regulator-s2mpa01-fix-step-values-for-some-ldos.patch
	regulator-s2mps11-fix-steps-for-buck7-buck8-and-ldo35.patch
	s390-setup-fix-early-warning-messages.patch
	s390-virtio-handle-find-on-invalid-queue-gracefully.patch
	scsi-aacraid-fix-performance-issue-on-logical-drives.patch
	scsi-qla2xxx-fix-lun-discovery-if-loop-id-is-not-assigned-yet-by-firmware.patch
	scsi-sd-optimal-i-o-size-should-be-a-multiple-of-physical-block-size.patch
	scsi-target-iscsi-avoid-iscsit_release_commands_from_conn-deadlock.patch
	scsi-virtio_scsi-don-t-send-sc-payload-with-tmfs.patch
	spi-pxa2xx-setup-maximum-supported-dma-transfer-length.patch
	spi-ti-qspi-fix-mmap-read-when-more-than-one-cs-in-use.patch
	splice-don-t-merge-into-linked-buffers.patch
	virtio-blk-consider-virtio_max_dma_size-for-maximum-segment-size.patch
	virtio-introduce-virtio_max_dma_size.patch