oem_ibm: Tie hb_tpm_required to TPMEnable dbus property

Signed-off-by: Manojkiran Eda <manojkiran.eda@gmail.com>
Change-Id: I67c45f31beaefc43eccb377da964b5263aad9f21
diff --git a/oem/ibm/configurations/bios/enum_attrs.json b/oem/ibm/configurations/bios/enum_attrs.json
index ec59d18..605b8d3 100644
--- a/oem/ibm/configurations/bios/enum_attrs.json
+++ b/oem/ibm/configurations/bios/enum_attrs.json
@@ -393,7 +393,15 @@
             "Required"
          ],
          "helpText" : "When the 'TPM Required Policy' is 'Required', a functional TPM is required to boot the system",
-         "displayName" : "TPM Required Policy (pending)"
+         "displayName" : "TPM Required Policy (pending)",
+         "dbus":
+            {
+               "object_path" : "/xyz/openbmc_project/control/host0/TPMEnable",
+               "interface" : "xyz.openbmc_project.Control.TPM.Policy",
+               "property_name" : "TPMEnable",
+               "property_type" : "bool",
+               "property_values" : [true, false]
+            }
       },
       {
          "attribute_name":"hb_tpm_required_current",