meta-facebook: harma: fix watchdog file name

Revise watchdog power off file name.

Change-Id: I067e471f4aa23cf9f114b8553d505473ebebace4
Signed-off-by: Peter Yin <peter.yin@quantatw.com>
diff --git a/meta-facebook/recipes-phosphor/watchdog/phosphor-watchdog/phosphor-watchdog.service b/meta-facebook/recipes-phosphor/watchdog/phosphor-watchdog/phosphor-watchdog.service
index f7e93b8..525a215 100644
--- a/meta-facebook/recipes-phosphor/watchdog/phosphor-watchdog/phosphor-watchdog.service
+++ b/meta-facebook/recipes-phosphor/watchdog/phosphor-watchdog/phosphor-watchdog.service
@@ -5,7 +5,7 @@
 ExecStart=/usr/bin/env phosphor-watchdog --continue --service=xyz.openbmc_project.Watchdog \
          --path=/xyz/openbmc_project/watchdog/host0 \
          --action_target=xyz.openbmc_project.State.Watchdog.Action.HardReset=phosphor-watchdog-host-reset.service \
-         --action_target=xyz.openbmc_project.State.Watchdog.Action.PowerOff=host-phosphor-watchdog-host-poweroff.service \
+         --action_target=xyz.openbmc_project.State.Watchdog.Action.PowerOff=phosphor-watchdog-host-poweroff.service \
          --action_target=xyz.openbmc_project.State.Watchdog.Action.PowerCycle=phosphor-watchdog-host-cycle.service \
 
 SyslogIdentifier=phosphor-watchdog