[vdi] Fix hang due to recursive locking.

- Declare recursive lock for global function map.

Change-Id: I3e792e21688c980343c4fd1c61dcad97f7a890cd

hipamd/vdi/hip_internal.hpp

@@ -179,7 +179,7 @@ struct ihipExec_t {
 };
 
 class PlatformState {
-  amd::Monitor lock_{"Guards global function map"};
+  amd::Monitor lock_{"Guards global function map", true};
 
   std::unordered_map<const void*, std::vector<std::pair<hipModule_t, bool>>> modules_;
   bool initialized_{false};