minor fixes, debug output, comments, using env vars, dead code

Change-Id: I08ad73b561709c1818d78a9191c96d6ad141a609

runtime/hsa-ext-aql-profile/test/simple_convolution/simple_convolution.cpp

@@ -25,7 +25,10 @@ OF THE POSSIBILITY OF SUCH DAMAGE.
 
 *******************************************************************************/
 
-#include "helper_funcs.hpp"
+#include <iostream>
+#include <string.h>
+
+#include "helper_funcs.h"
 #include "simple_convolution.h"
 
 SimpleConvolution::SimpleConvolution() {