Level 2 Hwp for p9_start_cbs

* Include check for VDN_PGOOD after Cbs_done
* Modifying Cbs_Idle fapi_err msg

Change-Id: I2b2543ccf0c2ad64c51835711f27dcec1ad77e20
Original-Change-Id: If6fd511cf12d1fb193246890d53fb576b70e90e9
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/26461
Reviewed-by: Soma Bhanutej <soma.bhanu@in.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: PPE CI <ppe-ci+hostboot@us.ibm.com>
Tested-by: Hostboot CI <hostboot-ci+hostboot@us.ibm.com>
Reviewed-by: Sunil Kumar <skumar8j@in.ibm.com>
Reviewed-by: PARVATHI RACHAKONDA <prachako@in.ibm.com>
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/36647
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>
Tested-by: Daniel M. Crowell <dcrowell@us.ibm.com>

src/import/chips/p9/procedures/xml/error_info/p9_start_cbs_errors.xml

@@ -33,4 +33,14 @@
     <description>CBS is not in IDLE state</description>
   </hwpError>
   <!-- ******************************************************************** -->
+  <hwpError>
+    <rc>RC_VDN_PGOOD_NOT_SET</rc>
+    <description>VDN_PGOOD not set to 1</description>
+  </hwpError>
+  <!-- ******************************************************************** -->
+  <hwpError>
+    <rc>RC_VDD_NEST_OBSERVE</rc>
+    <description>VDD bit not set</description>
+  </hwpError>
+  <!-- ******************************************************************** -->
 </hwpErrors>