Execute python apps with use of python3

Change-Id: Ib9ab805cc5a3878d168787736463dc495b96ddcf
diff --git a/apps/helpers/grgsm_capture b/apps/helpers/grgsm_capture
index f3886ba..43dce33 100755
--- a/apps/helpers/grgsm_capture
+++ b/apps/helpers/grgsm_capture
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 # @file
 # @author (C) 2015 by Roman Khassraf <rkhassraf@gmail.com>