Hi, all

This is the take 3 of AHCI suspend/resume patches.

The patch is against #upstream[
2154cfa6ba560401d25f6cc083fe3fb996cbb571] + Tejun's Power Management
patch(available at
http://htj.dyndns.org/git/?p=libata-tj.git;a=shortlog;h=new-pm).

Although Tejun's PM patch may change as he mentioned in another mail,
such change is minor and will not impact the logic of AHCI suspend/
resume. So I re-send the patch in order to get test feedback and review
comments earlier.

Compared with last version, all the changes are in [PATCH 6/6]. In
particular, I made changes to the sixth patch to integrate it with
Tejun's PM patch.

Thanks,
Forrest