Add default (initToZero) for ATTR_CEN_LRDIMM_RANK_MULT_MODE

Change-Id: I9283541c6a9c21d2dfc5fc7200aeb95bb67ca00d
CQ:SW440964
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/63899
Reviewed-by: STEPHEN GLANCY <sglancy@us.ibm.com>
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Reviewed-by: BRIANA E. FOXWORTH <befoxwor@us.ibm.com>
Reviewed-by: Jennifer A. Stofer <stofer@us.ibm.com>
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/63913
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Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>

src/import/chips/centaur/procedures/xml/attribute_info/memory_attributes.xml

@@ -2992,6 +2992,7 @@ Eff config should set this up</description>
     <targetType>TARGET_TYPE_MBA</targetType>
     <description>LRDIMM rank multiplication mode.
 Will be set at an MBA level with one policy to be used</description>
+    <initToZero></initToZero>
     <valueType>uint8</valueType>
     <enum>NORMAL = 0, 2X_MULT = 2, 4X_MULT = 4</enum>
     <writeable/>