Packaging of memory vpd on Nimbus, MCA->MCS

Change from MCA to MCS target. Update decode logic.

Change-Id: I9181eaa8027d54a8f86dff42e2f432f247f9c66c
Original-Change-Id: I71408c25ce33cf6e342bb704b5d173f8d98229dc
RTC: 144519
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/25403
Tested-by: Jenkins Server
Tested-by: PPE CI
Tested-by: Hostboot CI
Reviewed-by: William H. Schwartz <whs@us.ibm.com>
Reviewed-by: ANDRE A. MARIN <aamarin@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>
Reviewed-by: Jennifer A. Stofer <stofer@us.ibm.com>
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/42148
Tested-by: Daniel M. Crowell <dcrowell@us.ibm.com>

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

@@ -69,9 +69,9 @@
   <!-- ********************************************************************* -->
   <attribute>
     <id>ATTR_MEMVPD_POS</id>
-    <targetType>TARGET_TYPE_MCA</targetType>
+    <targetType>TARGET_TYPE_MCS</targetType>
     <description>
-      The position of the MCA target's VPD selector data, relative to the EEPROM
+      The position of the MCS 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