correct bad thread timing storage size set which should have been 1 from the start and not 0

qdp_project/src/Benchmark.cpp

@@ -179,7 +179,7 @@ void scan_b(size_t gid, size_t tid) {
     const size_t end = start + split;
 
     THREAD_TIMING_[SCANB_TIMING_INDEX][tid * gid].clear();
-    THREAD_TIMING_[SCANB_TIMING_INDEX][tid  * gid].resize(0);
+    THREAD_TIMING_[SCANB_TIMING_INDEX][tid * gid].resize(1);
 
     LAUNCH_.wait();
 
@@ -203,7 +203,7 @@ void scan_b(size_t gid, size_t tid) {
 
 void scan_a(size_t gid, size_t tid) {
     THREAD_TIMING_[SCANA_TIMING_INDEX][tid * gid].clear();
-    THREAD_TIMING_[SCANA_TIMING_INDEX][tid * gid].resize(0);
+    THREAD_TIMING_[SCANA_TIMING_INDEX][tid * gid].resize(1);
 
     LAUNCH_.wait();