Revert "Revert "meta-quanta: gbs: enable fallback watchdog""

This reverts commit cf7bc62babb57ea27e7a00cd6271ca53579281fe.

Reason for revert:
Enable fallback watchdog since it is possible that host fails to boot
before enabling the watchdog timer at all.

It was thought that DC cycle may be needed for fallback watchdog but it
is not required.

Signed-off-by: Brandon Kim <brandonkim@google.com>
Change-Id: I8b0f2677f078a091b626536a7ca474afa6ce77d9
diff --git a/meta-quanta/meta-gbs/recipes-phosphor/watchdog/phosphor-watchdog/obmc/watchdog/host0 b/meta-quanta/meta-gbs/recipes-phosphor/watchdog/phosphor-watchdog/obmc/watchdog/host0
index c0f04ef..27c438d 100644
--- a/meta-quanta/meta-gbs/recipes-phosphor/watchdog/phosphor-watchdog/obmc/watchdog/host0
+++ b/meta-quanta/meta-gbs/recipes-phosphor/watchdog/phosphor-watchdog/obmc/watchdog/host0
@@ -3,3 +3,6 @@
 UNIT_HARD_RESET=phosphor-host-watchdog-reset.service
 UNIT_POWER_OFF=phosphor-host-watchdog-poweroff.service
 UNIT_POWER_CYCLE=phosphor-host-watchdog-powercycle.service
+FALLBACK_ACTION=xyz.openbmc_project.State.Watchdog.Action.PowerCycle
+FALLBACK_INTERVAL=180000
+MIN_INTERVAL=60000
diff --git a/meta-quanta/meta-gbs/recipes-phosphor/watchdog/phosphor-watchdog/phosphor-watchdog@.service b/meta-quanta/meta-gbs/recipes-phosphor/watchdog/phosphor-watchdog/phosphor-watchdog@.service
index df11b22..4577cd1 100644
--- a/meta-quanta/meta-gbs/recipes-phosphor/watchdog/phosphor-watchdog/phosphor-watchdog@.service
+++ b/meta-quanta/meta-gbs/recipes-phosphor/watchdog/phosphor-watchdog/phosphor-watchdog@.service
@@ -4,7 +4,8 @@
 [Service]
 EnvironmentFile={envfiledir}/obmc/watchdog/%I
 ExecStart=/usr/bin/env phosphor-watchdog --service=${{SERVICE}} --path=${{DEVPATH}} \
-  --continue \
+  --continue --fallback_always --min_interval=${{MIN_INTERVAL}} \
+  --fallback_action=${{FALLBACK_ACTION}} --fallback_interval=${{FALLBACK_INTERVAL}} \
   --action_target=xyz.openbmc_project.State.Watchdog.Action.HardReset=${{UNIT_HARD_RESET}} \
   --action_target=xyz.openbmc_project.State.Watchdog.Action.PowerOff=${{UNIT_POWER_OFF}} \
   --action_target=xyz.openbmc_project.State.Watchdog.Action.PowerCycle=${{UNIT_POWER_CYCLE}}