fru-fault-monitor: Enable OperationalStatus monitor feature

Currently, the phosphor-fru-fault-monitor updates the Asserted
property of the Led Group D-Bus object by monitoring the
`/xyz/openbmc_project/logging` object path.

The intent behind this commit is to add another way to monitor the
`xyz.openbmc_project.State.Decorator.OperationalStatus` interface
of the Inventory D-Bus object, and check whether the Inventory
D-Bus object is associated with the LED group D-Bus object, and
then update the Asserted property of the LedManager.

Since both these methods handle the faults differently,
Only ONE of these 2 methods can be enabled and NOT both.

The first way is supported by default. To turn OFF the default way
AND turn ON this second way, Enable monitor-operational-status.

Change-Id: I03701e599b6a120bc1f83da6f473b12f38660d64
Signed-off-by: Vishwanatha Subbanna <vishwa@linux.vnet.ibm.com>
diff --git a/meta-ibm/recipes-phosphor/leds/phosphor-led-manager_%.bbappend b/meta-ibm/recipes-phosphor/leds/phosphor-led-manager_%.bbappend
index 0ae5474..96a97b0 100644
--- a/meta-ibm/recipes-phosphor/leds/phosphor-led-manager_%.bbappend
+++ b/meta-ibm/recipes-phosphor/leds/phosphor-led-manager_%.bbappend
@@ -6,8 +6,9 @@
 SYSTEMD_ENVIRONMENT_FILE_${PN}_append_p10bmc +="obmc/led/set-all/groups/config"
 
 # Use the JSON configuration file at runtime than the static led.yaml
-# Also, enable Lamp Test feature for p10bmc systems
-PACKAGECONFIG_append_p10bmc = " use-json use-lamp-test"
+# Also, enable Lamp Test and OperationalStatus monitor feature for
+# p10bmc systems
+PACKAGECONFIG_append_p10bmc = " use-json use-lamp-test monitor-operational-status"
 
 # Install the lamp test override file for p10bmc
 SRC_URI_append_p10bmc = " file://lamp-test-led-overrides.json"