Merge 4.19.227 into android-4.19-stable

Changes in 4.19.227
	drm/i915: Flush TLBs before releasing backing store
	net: bridge: clear bridge's private skb space on xmit
	select: Fix indefinitely sleeping task in poll_schedule_timeout()
	drm/vmwgfx: Fix stale file descriptors on failed usercopy
	Linux 4.19.227

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I6c614263af5682f536780b71e61b7b19710c5e6b