common: code re-org

Move common files under a common/ directory.

Signed-off-by: Deepak Kodihalli <dkodihal@in.ibm.com>
Change-Id: I0eaf91d4ee94c1e78228da0c50892f82e91912fa
diff --git a/test/mocked_utils.hpp b/test/mocked_utils.hpp
index 0813830..838e542 100644
--- a/test/mocked_utils.hpp
+++ b/test/mocked_utils.hpp
@@ -1,4 +1,4 @@
-#include "utils.hpp"
+#include "common/utils.hpp"
 
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>