Added periodic cal fix - fixes bad delays

Change-Id: Ie727889bb62d1b200e2d690a9942bb62dcddbf79
Original-Change-Id: I8c55c2947dd85cc9ada45aaa9225ce641633f259
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/35239
Reviewed-by: Brian R. Silver <bsilver@us.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: PPE CI <ppe-ci+hostboot@us.ibm.com>
Reviewed-by: JACOB L. HARVEY <jlharvey@us.ibm.com>
Dev-Ready: STEPHEN GLANCY <sglancy@us.ibm.com>
Tested-by: Hostboot CI <hostboot-ci+hostboot@us.ibm.com>
Reviewed-by: Matt K. Light <mklight@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>
Reviewed-by: Jennifer A. Stofer <stofer@us.ibm.com>

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

@@ -2061,6 +2061,24 @@
     </chipEcFeature>
   </attribute>
 
+  <attribute>
+    <id>ATTR_CHIP_EC_FEATURE_MSS_BLUE_WATERFALL_ADJUST</id>
+    <targetType>TARGET_TYPE_PROC_CHIP</targetType>
+    <description>
+      In DD1.** Nimbus, the blue waterfall can calibrate to an incorrect value. In DD2 Nimbus,
+      This isn't the case as the HW will not allow this calibration value
+    </description>
+    <chipEcFeature>
+      <chip>
+        <name>ENUM_ATTR_NAME_NIMBUS</name>
+        <ec>
+          <value>0x20</value>
+          <test>LESS_THAN</test>
+        </ec>
+      </chip>
+    </chipEcFeature>
+  </attribute>
+
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