Sync w/ updated power control interfaces

setPowerState/getPowerState methods are removed.
all properties are removed except PGood and State.
return value of forcePowerOff is changed to bool from int32

TestBy:
    Ipmi command and click buttons
Change-Id: I0b5e51cea959594acf04257c566893da6ffe7d26
Signed-off-by: Kuiying Wang <kuiying.wang@intel.com>
diff --git a/power-control/service-files/intel-power-warm-reset@.service b/power-control/service-files/intel-power-warm-reset@.service
index c8bd4fc..ede20ac 100644
--- a/power-control/service-files/intel-power-warm-reset@.service
+++ b/power-control/service-files/intel-power-warm-reset@.service
@@ -7,8 +7,8 @@
 
 [Service]
 Type=oneshot
-ExecStart=/bin/sh -c "busctl call `mapper get-service /xyz/openbmc_project/Chassis/Control/Power%i` \
-          /xyz/openbmc_project/Chassis/Control/Power%i xyz.openbmc_project.Chassis.Control.Power setPowerState i 2"
+ExecStart=/bin/sh -c "busctl set-property `mapper get-service /xyz/openbmc_project/Chassis/Control/Power%i` \
+          /xyz/openbmc_project/Chassis/Control/Power%i xyz.openbmc_project.Chassis.Control.Power State i 2"
 SyslogIdentifier=intel-power-warm-reset
 
 [Install]