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

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

samples/counter_collection/device_counting.cpp

@@ -72,7 +72,7 @@ expected_agent()
 rocprofiler_context_id_t&
 get_client_ctx()
 {
-    static rocprofiler_context_id_t ctx;
+    static rocprofiler_context_id_t ctx{0};
     return ctx;
 }