4.19-stable patches

4.19-stable patches

added patches:
	blk-mq-order-adding-requests-to-hctx-dispatch-and-checking-sched_restart.patch
	block-loop-set-discard-granularity-and-alignment-for-block-device-backed-loop.patch
	btrfs-fix-space-cache-memory-leak-after-transaction-abort.patch
	btrfs-reset-compression-level-for-lzo-on-remount.patch
	fbcon-prevent-user-font-height-or-width-change-from-causing-potential-out-of-bounds-access.patch
	hid-i2c-hid-always-sleep-60ms-after-i2c_hid_pwr_on-commands.patch
	serial-8250-change-lock-order-in-serial8250_do_startup.patch
	serial-8250_exar-fix-number-of-ports-for-commtech-pcie-cards.patch
	serial-pl011-don-t-leak-amba_ports-entry-on-driver-register-error.patch
	serial-pl011-fix-oops-on-eprobe_defer.patch
	serial-samsung-removes-the-irq-not-found-warning.patch
	usb-host-xhci-fix-ep-context-print-mismatch-in-debugfs.patch
	usb-lvtest-return-proper-error-code-in-probe.patch
	vt-defer-kfree-of-vc_screenbuf-in-vc_do_resize.patch
	vt_ioctl-change-vt_resizex-ioctl-to-check-for-error-return-from-vc_resize.patch
	writeback-avoid-skipping-inode-writeback.patch
	writeback-fix-sync-livelock-due-to-b_dirty_time-processing.patch
	writeback-protect-inode-i_io_list-with-inode-i_lock.patch
	xen-uses-irqdesc-irq_data_common-handler_data-to-store-a-per-interrupt-xen-data-pointer-which-contains-xen-specific-information.patch
	xhci-always-restore-ep_soft_clear_toggle-even-if-ep-reset-failed.patch
	xhci-do-warm-reset-when-both-cas-and-xdev_resume-are-set.patch