Merge 4.19.210 into android-4.19-stable

Changes in 4.19.210
	net: mdio: introduce a shutdown method to mdio device drivers
	xen-netback: correct success/error reporting for the SKB-with-fraglist case
	sparc64: fix pci_iounmap() when CONFIG_PCI is not set
	ext2: fix sleeping in atomic bugs on error
	scsi: sd: Free scsi_disk device via put_device()
	usb: testusb: Fix for showing the connection speed
	usb: dwc2: check return value after calling platform_get_resource()
	selftests: be sure to make khdr before other targets
	scsi: ses: Retry failed Send/Receive Diagnostic commands
	tools/vm/page-types: remove dependency on opt_file for idle page tracking
	libata: Add ATA_HORKAGE_NO_NCQ_ON_ATI for Samsung 860 and 870 SSD.
	lib/timerqueue: Rely on rbtree semantics for next timer
	Linux 4.19.210

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ib6ae9d37c6e94c9a0d8f5875836fb8fdbef9ff70