Marvell ahci hardware requires a workaround to prevent eSATA failures
on hotplug/reset when used with multi-bay external enclosures.
Errata Ref#226 - SATA Disk HOT swap issue when connected through Port
Multiplier in FIS-based Switching mode.
These patches backport the workaround from 4.17.
Signed-off-by: Jeremiah McConnell <miah@miah.com>
(cherry picked from commit e820455198aa50cc32f9a108a4696f0cc23023c3)
