ipmid: Update set chassis power restore policy

Use the new ipmi api, including the yield context mechanism.
Modify to use the new provider API. One by one, change calls to
remove any legacy API constructs.

Tested-by: ipmitool chassis policy list
           ipmitool chassis policy previous
           ipmitool chassis policy always-on
           ipmitool chassis policy always-off

Change-Id: I02a955c3946b940daaa3fe90c2a220b0eb719bad
Signed-off-by: Vernon Mauery <vernon.mauery@linux.intel.com>
1 file changed