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/host-bmc/host_pdr_handler.hpp b/host-bmc/host_pdr_handler.hpp
index 06b46e6..a54c008 100644
--- a/host-bmc/host_pdr_handler.hpp
+++ b/host-bmc/host_pdr_handler.hpp
@@ -3,10 +3,10 @@
 #include "libpldm/base.h"
 #include "libpldm/platform.h"
 
+#include "common/types.hpp"
+#include "common/utils.hpp"
 #include "libpldmresponder/pdr_utils.hpp"
 #include "pldmd/dbus_impl_requester.hpp"
-#include "types.hpp"
-#include "utils.hpp"
 
 #include <sdeventplus/event.hpp>
 #include <sdeventplus/source/event.hpp>