Fix missing sbe traces in errorlog

There is a size limitation for build field
in sf_magic_cookie_t in fsp-trace. Max size is 128 characters.
But with SBE release now moving to jenkins, the path of SBE
directory is long(172 chars). This fails the sbeStringFIle parsing.

Change-Id: I75cc3b4028bef592f45980773be03ea2e40e7b52
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/54098
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Reviewed-by: RAJA DAS <rajadas2@in.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: Sachin Gupta <sgupta2m@in.ibm.com>

src/tools/trace/ppetracepp.C

@@ -921,7 +921,7 @@ if (!hashtab.empty())
     time_t tt = time(NULL);
     sprintf(buf, "%s", asctime(localtime(&tt)));
     buf[strlen(buf)-1] = '\0'; // chop off extra newline
-	fprintf(TRC, "#FSP_TRACE_v2|||%s|||BUILD:%s", buf, pwd.c_str());
+	fprintf(TRC, "#FSP_TRACE_v2|||%s|||BUILD:%.120s", buf, pwd.c_str());
 
 	string srch_str = "||";
 	srch_str += source;

src/tools/trace/tracehash.pl

@@ -186,7 +186,7 @@
 if (defined $dir)
 {
 
-    $build = $build . $dir; # default to put at top of string file
+    $build = $build . substr($dir, 0, 120); # default to put at top of string file
     if($collect)
     {
 	collect_files($dir);