tests: Organize the test code to make it modular

The unit test code for libpldmresponder, host-bmc and common is
in a shared test directory. This patch separates the test code
to the respective directory.

Tested: Ran the unit test and tests passed.

Signed-off-by: Tom Joseph <rushtotom@gmail.com>
Change-Id: I31d53681fa6c0d8bc6eb7c4e3341aaff4bc341ee
diff --git a/oem/ibm/test/libpldmresponder_oem_platform_test.cpp b/oem/ibm/test/libpldmresponder_oem_platform_test.cpp
index 62ca129..aa986f4 100644
--- a/oem/ibm/test/libpldmresponder_oem_platform_test.cpp
+++ b/oem/ibm/test/libpldmresponder_oem_platform_test.cpp
@@ -1,5 +1,6 @@
 #include "libpldm/entity.h"
 
+#include "common/test/mocked_utils.hpp"
 #include "common/utils.hpp"
 #include "libpldmresponder/event_parser.hpp"
 #include "libpldmresponder/pdr.hpp"
@@ -7,7 +8,6 @@
 #include "libpldmresponder/platform.hpp"
 #include "oem/ibm/libpldmresponder/inband_code_update.hpp"
 #include "oem/ibm/libpldmresponder/oem_ibm_handler.hpp"
-#include "test/mocked_utils.hpp"
 
 #include <sdeventplus/event.hpp>