Adding p9a_ocmb_enable

Change-Id: I40fbbf9a6323163d8c064ec435dc0cc666dcb0ab
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/68088
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Reviewed-by: STEPHEN GLANCY <sglancy@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: RYAN P. KING <rpking@us.ibm.com>
Reviewed-by: Joseph J. McGill <jmcgill@us.ibm.com>
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/68091
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/nest_attributes.xml

@@ -850,6 +850,18 @@
   <platInit/>
 </attribute>
 <!-- ********************************************************************** -->
+<attribute>
+  <id>ATTR_OMI_REFCLOCK_SWIZZLE</id>
+  <targetType>TARGET_TYPE_OMI</targetType>
+  <description>
+      Define OMI Ref clock/Swizzle for OCMB/Explorer..
+      Mapper from OMI unit id -> ROOT CNTL 7 refclk drive enable bit
+      consumer: p9a_ocmb_enable
+      </description>
+  <valueType>uint8</valueType>
+  <platInit/>
+</attribute>
+<!-- ********************************************************************** -->
 <attribute>
   <id>ATTR_SYSTEM_IPL_PHASE</id>
   <targetType>TARGET_TYPE_SYSTEM</targetType>