Add Volatile sensor to ipmi inventory

Add the Volatile sensor to the openpower ipmi sensor mrw
config. The Volatile sensor will be set by the hostboot code.

Part of openbmc/openbmc#2397

Change-Id: Ic6d492326707a5f277e399c722be43311bb563f4
Signed-off-by: Adriana Kobylak <anoo@us.ibm.com>
diff --git a/meta-openbmc-machines/meta-openpower/common/recipes-phosphor/ipmi/openpower-ipmi-oem-sensor-inventory-mrw/openpower-config.yaml b/meta-openbmc-machines/meta-openpower/common/recipes-phosphor/ipmi/openpower-ipmi-oem-sensor-inventory-mrw/openpower-config.yaml
index ab3ab83..7ab428b 100644
--- a/meta-openbmc-machines/meta-openpower/common/recipes-phosphor/ipmi/openpower-ipmi-oem-sensor-inventory-mrw/openpower-config.yaml
+++ b/meta-openbmc-machines/meta-openpower/common/recipes-phosphor/ipmi/openpower-ipmi-oem-sensor-inventory-mrw/openpower-config.yaml
@@ -14,3 +14,18 @@
             type: "bool"
             assert: "true"
             deassert: "false"
+
+hb_volatile_sensor:
+  path: /org/open_power/control/volatile
+  serviceInterface: org.freedesktop.DBus.Properties
+  readingType: assertion
+  interfaces:
+    xyz.openbmc_project.Object.Enable:
+      Enabled:
+        Offsets:
+          0x00:
+            type: "bool"
+            assert: false
+          0x01:
+            type: "bool"
+            assert: true