P9 L2err line delete HWP

--- fix bugs April 25th, 2017---
	Add the busy bit poll after writing the PRD Purge Engine
	Command Register
-----------------------------------------
1) Add the trigger(bit0) value and type(bit1:4) value of
   PRD Purge Engine Command Register wrriten actions which
   is missed in the previous HWP.
2) Take the reg_busy(bit9) into consideration.
   The purge engine command register is set only when reg_busy is 0.
3) When executing the line delete procedure, if the reg_busy is
   non-zero, we wait for 10ms and poll reg_busy again
   for a maximum count of 100.
4) Fix a bug for restart trace array option.
5) Report no error found if the start header is reached during
   the trace array searching.

Change-Id: I9845927358b6a7f79c1a4c45d1e0cf9a9dcb9ea3
Original-Change-Id: I716601a68b5f8c3458e3085cc99a84fbee6f8c7b
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/38616
Reviewed-by: Peng Fei Gou <shgoupf@cn.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Reviewed-by: Joseph J. McGill <jmcgill@us.ibm.com>
Reviewed-by: Jennifer A. Stofer <stofer@us.ibm.com>
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/43105
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP HW <op-hw-jenkins+hostboot@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>

src/import/chips/p9/procedures/xml/error_info/p9_l2err_extract_errors.xml

@@ -106,6 +106,15 @@
     </description>
 	<ffdc>TARGET</ffdc>
   </hwpError>
+  <!-- ******************************************************************** -->
+    <hwpError>
+    <rc>RC_P9_L2ERR_LINE_DELETE_REG_BUSY</rc>
+    <description>
+      Procedure: p9_l2err_linedelete
+      Error while try to update PRD Purge Engine Command Register
+    </description>
+	<ffdc>TARGET</ffdc>
+  </hwpError>
   <!-- ******************************************************************** -->
 </hwpErrors>