[PULL][SRU Bionic] Several hisi_sas fixes

[Seth Forshee]

On Wed, Jun 20, 2018 at 03:32:03PM -0600, dann frazier wrote:
> Resolves the following issues with the hisi_sas driver:
>   BugLink: https://bugs.launchpad.net/bugs/1777696
>   BugLink: https://bugs.launchpad.net/bugs/1777727
>   BugLink: https://bugs.launchpad.net/bugs/1777734
>   BugLink: https://bugs.launchpad.net/bugs/1777736
> 
> All clean cherry-picks - the first from Linus' tree, the rest from linux-next.

I assume this pull should also go into unstable?

Thanks,
Seth