mmc: sdhci: remove "state" argument from sdhci_suspend_host

Drop the "state" argument from sdhci_suspend_host.  Its only user is the
PCI glue;  this allows to move all SDHCI glues to use dev_pm_ops instead.

Change-Id: I5064fad454d0c461e4a65bee14763c7ace4c27ac
Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
[venkatg@codeaurora.org: Move suspend/resume functions into pm ops]
Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>