meta-facebook: Add watchdog service

Added watchdog service file and also provided actionmap for
watchdog timeout.

Change-Id: I50861495f298cc35c4d1cc04769cdf15ee38e301
Signed-off-by: Vijay Khemka <vijaykhemka@fb.com>
diff --git a/meta-tiogapass/recipes-phosphor/watchdog/phosphor-watchdog_%.bbappend b/meta-tiogapass/recipes-phosphor/watchdog/phosphor-watchdog_%.bbappend
new file mode 100644
index 0000000..b0dcd09
--- /dev/null
+++ b/meta-tiogapass/recipes-phosphor/watchdog/phosphor-watchdog_%.bbappend
@@ -0,0 +1,5 @@
+FILESEXTRAPATHS_append := ":${THISDIR}/${PN}"
+
+# Remove the override to keep service running after DC cycle
+SYSTEMD_OVERRIDE_${PN}_remove = "poweron.conf:phosphor-watchdog@poweron.service.d/poweron.conf"
+SYSTEMD_SERVICE_${PN} = "phosphor-watchdog.service phosphor-watchdog-host-poweroff.service phosphor-watchdog-host-reset.service phosphor-watchdog-host-cycle.service"