Changes related to packaging of memory vpd on Nimbus

Create a HWP to process MR and MT keyword to map to memory vpd keyword.
Change specialization from MCS to MCA.

Change-Id: I3924431a330ccc750d510afb5eec216bedd9581e
Original-Change-Id: I426e4c7600e2158737c82e3c2380518c392ada5b
RTC: 144519
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/23775
Tested-by: Jenkins Server
Reviewed-by: Brian R. Silver <bsilver@us.ibm.com>
Tested-by: PPE CI
Tested-by: Hostboot CI
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>
Reviewed-by: Matt K. Light <mklight@us.ibm.com>
Reviewed-by: Jennifer A. Stofer <stofer@us.ibm.com>
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/42146
Tested-by: Daniel M. Crowell <dcrowell@us.ibm.com>

src/import/chips/p9/procedures/xml/attribute_info/freq_attributes.xml

@@ -77,4 +77,18 @@
     <platInit/>
   </attribute>
   <!-- ********************************************************************* -->
+  <attribute>
+    <id>ATTR_MEMVPD_POS</id>
+    <targetType>TARGET_TYPE_MCA</targetType>
+    <description>
+      The position of the MCA target's VPD selector data, relative to the EEPROM
+      that contains its data. For systems with a single EEPROM for all chips,
+      this should be equivalent to ATTR_FAPI_POS (the logical MCA position).
+      For systems with an EEPROM per chip, this value should be equivalent to
+      ATTR_CHIP_UNIT_POS.
+    </description>
+    <valueType>uint8</valueType>
+    <platInit/>
+  </attribute>
+  <!-- ********************************************************************* -->
 </attributes>