Check to force tools to initialize the ctx id to zero. (#1135)

* Check to force tool to initialize the ctx id to zero.

* initialize rocprofiler_context_id_t with 0 in units tests

* changelog

---------

Co-authored-by: Gopesh Bhardwaj <gopesh.bhardwaj@amd.com>

tests/thread-trace/single_dispatch.cpp

@@ -87,7 +87,7 @@ int
 tool_init(rocprofiler_client_finalize_t /* fini_func */, void* tool_data)
 {
     Callbacks::callbacks_init();
-    static rocprofiler_context_id_t client_ctx = {};
+    static rocprofiler_context_id_t client_ctx = {0};
 
     ROCPROFILER_CALL(rocprofiler_create_context(&client_ctx), "context creation");