Adds PDA support

PDA support will be needed for:
1) NVDIMM support (re-programming WR VREF)
2) PDA shmoo

Change-Id: Ic49bbbbe907ee9609ee26f6152de8949cdb999a3
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/48575
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: ANDRE A. MARIN <aamarin@us.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: HWSV CI <hwsv-ci+hostboot@us.ibm.com>
Reviewed-by: Louis Stermole <stermole@us.ibm.com>
Tested-by: Hostboot CI <hostboot-ci+hostboot@us.ibm.com>
Reviewed-by: Jennifer A. Stofer <stofer@us.ibm.com>
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/70353
Reviewed-by: Sachin Gupta <sgupta2m@in.ibm.com>

src/import/chips/p9/procedures/xml/error_info/p9_memory_mss_lib.xml

@@ -520,4 +520,26 @@
     </callout>
   </hwpError>
 
+  <hwpError>
+    <rc>RC_MSS_EMPTY_PDA_VECTOR</rc>
+    <description>Indicates a that a vector was empty when a procedure was called</description>
+    <ffdc>PROCEDURE</ffdc>
+    <callout>
+      <procedure>CODE</procedure>
+      <priority>HIGH</priority>
+    </callout>
+  </hwpError>
+
+  <hwpError>
+    <rc>RC_MSS_PDA_DRAM_OUT_OF_RANGE</rc>
+    <description>Indicates a DRAM passed to the PDA code is out of range</description>
+    <ffdc>MCA_TARGET</ffdc>
+    <ffdc>DRAM</ffdc>
+    <ffdc>MAX_DRAM</ffdc>
+    <callout>
+      <procedure>CODE</procedure>
+      <priority>HIGH</priority>
+    </callout>
+  </hwpError>
+
 </hwpErrors>