Make DD2 as default in debug tools

Change-Id: I1c9fd39245f2acc822323b4b3dd63ba12d48f02f
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/46250
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: Shakeeb A. Pasha B K <shakeebbk@in.ibm.com>
Reviewed-by: RAJA DAS <rajadas2@in.ibm.com>
Reviewed-by: Sachin Gupta <sgupta2m@in.ibm.com>

src/tools/debug/sbe-debug.py

@@ -528,7 +528,7 @@ def main( argv ):
     target = 'HW'
     node = 0
     proc = 0
-    ddsuffix = 'DD1'
+    ddsuffix = 'DD2'
     file_path = ""
     symbol = ''