p9_abist: Support for p9ndd2

* sdis_n workaround also in dd2
* different bits for edram_done, sram_done in dd2
* option to stop RUNN (only works in dd2)

Change-Id: Ic358ba2278467635d04fa3c387a0ae58616e0f20
Original-Change-Id: I0bda7b431b87f59d1307329bcdffd0458818cb10
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/37660
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: PPE CI <ppe-ci+hostboot@us.ibm.com>
Reviewed-by: Joseph E. Dery <dery@us.ibm.com>
Tested-by: Hostboot CI <hostboot-ci+hostboot@us.ibm.com>
Reviewed-by: SRINIVAS V. POLISETTY <srinivan@in.ibm.com>
Reviewed-by: Matt K. Light <mklight@us.ibm.com>
Reviewed-by: Jennifer A. Stofer <stofer@us.ibm.com>

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

@@ -357,6 +357,23 @@
     </chipEcFeature>
   </attribute>
   <!-- ******************************************************************** -->
+  <attribute>
+    <id>ATTR_CHIP_EC_FEATURE_HW254454</id>
+    <targetType>TARGET_TYPE_PROC_CHIP</targetType>
+    <description>
+        HW254454: In P9 DD1, DRAM_ABIST_DONE_DC is unused; SRAM_ABIST_DONE_DC is shared by sram and edram
+    </description>
+    <chipEcFeature>
+      <chip>
+        <name>ENUM_ATTR_NAME_NIMBUS</name>
+        <ec>
+          <value>0x20</value>
+          <test>LESS_THAN</test>
+        </ec>
+      </chip>
+    </chipEcFeature>
+  </attribute>
+  <!-- ******************************************************************** -->
   <attribute>
     <id>ATTR_CHIP_EC_FEATURE_HW376110</id>
     <targetType>TARGET_TYPE_PROC_CHIP</targetType>