Updating p9.core.scan.initfile settings for p9n 2.3

HW407187 workaround should not be applied to p9n 2.3
HW407165 workaround should be applied to p9n 2.3 using new spy
HW431323 should be applied to p9n 2.3

Change-Id: I458df430d89dee66342e62afab704abe321b8d6e
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/60494
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: HWSV CI <hwsv-ci+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: James N. Klazynski <jklazyns@us.ibm.com>
Reviewed-by: Thi N. Tran <thi@us.ibm.com>
Reviewed-by: Jennifer A. Stofer <stofer@us.ibm.com>
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/60502
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP HW <op-hw-jenkins+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>

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

@@ -4053,6 +4053,13 @@
           <test>GREATER_THAN_OR_EQUAL</test>
         </ec>
       </chip>
+      <chip>
+        <name>ENUM_ATTR_NAME_NIMBUS</name>
+        <ec>
+          <value>0x23</value>
+          <test>GREATER_THAN_OR_EQUAL</test>
+        </ec>
+      </chip>
     </chipEcFeature>
   </attribute>
   <!-- ******************************************************************** -->
@@ -4152,6 +4159,13 @@
           <test>GREATER_THAN_OR_EQUAL</test>
         </ec>
       </chip>
+      <chip>
+        <name>ENUM_ATTR_NAME_NIMBUS</name>
+        <ec>
+          <value>0x23</value>
+          <test>GREATER_THAN_OR_EQUAL</test>
+        </ec>
+      </chip>
     </chipEcFeature>
   </attribute>
   <!-- ******************************************************************** -->
@@ -4967,8 +4981,8 @@
       <chip>
         <name>ENUM_ATTR_NAME_NIMBUS</name>
         <ec>
-          <value>0x10</value>
-          <test>GREATER_THAN_OR_EQUAL</test>
+          <value>0x22</value>
+          <test>LESS_THAN_OR_EQUAL</test>
         </ec>
       </chip>
       <chip>