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/external_correlation_id_request/client.cpp

@@ -89,7 +89,7 @@ using retired_corr_id_set_t  = std::unordered_set<uint64_t>;
 
 rocprofiler_client_id_t*      client_id                = nullptr;
 rocprofiler_client_finalize_t client_fini_func         = nullptr;
-rocprofiler_context_id_t      client_ctx               = {};
+rocprofiler_context_id_t      client_ctx               = {0};
 rocprofiler_buffer_id_t       client_buffer            = {};
 buffer_name_info*             client_name_info         = new buffer_name_info{};
 kernel_symbol_map_t*          client_kernels           = new kernel_symbol_map_t{};