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/agent_test.cpp

@@ -51,7 +51,7 @@ namespace ATTTest
 {
 namespace Agent
 {
-rocprofiler_context_id_t client_ctx = {};
+rocprofiler_context_id_t client_ctx = {0};
 rocprofiler_client_id_t* client_id  = nullptr;
 std::atomic<bool>        valid_data{false};