Populate AllowedPowerModes

AllowedPowerModes is a new dbus property that will be used by Redfish to
publish the supported modes.

'''
busctl -l introspect org.open_power.OCC.Control /xyz/openbmc_project/control/host0/power_mode
...
xyz.openbmc_project.Control.Power.Mode interface -         -                                                                                                                                                                                                                                                                                                                                                                                                                             -
.AllowedPowerModes                     property  as        3 "xyz.openbmc_project.Control.Power.Mode.PowerMode.MaximumPerformance" "xyz.openbmc_project.Control.Power.Mode.PowerMode.PowerSaving" "xyz.openbmc_project.Control.Power.Mode.PowerMode.Static" const
.PowerMode                             property  s         "xyz.openbmc_project.Control.Power.Mode.PowerMode.MaximumPerformance"                                                                                                                                                                                                                                                                                                                                                         emits-change writable
.SafeMode                              property  b         false                                                                                                                                                                                                                                                                                                                                                                                                                         emits-change
'''

Change-Id: I67ab6c2f8545c327dd7ab437f892ad5796a194c5
Signed-off-by: Chris Cain <cjcain@us.ibm.com>
1 file changed