[PULL][SRU Cosmic] Update drivers specific to HiSilicon server SoCs

[dann frazier]

On Tue, Jan 8, 2019 at 4:25 PM dann frazier <dann.frazier at canonical.com> wrote:
>
> BugLink: https://bugs.launchpad.net/bugs/1810457
>
> The first commit here is a revert of a change that was unintentionally
> applied twice, but luckily appears to have not caused any issues. The
> remaining patches are all clean cherry picks from upstream,

Sorry - cut & paste error here. 2 patches did require some minor
backporting for cosmic, noted in the sign-off section of those
commits.

  -dann