Workaround crash on deactivation.

This is temporary fix of the crash is seen duing singleton destruction.
The proper fix is done in Thunder > R4.4

Change-Id: Ife43cfe099b82f61ac975a9398e5bd891d2fde34

plugin/CobaltImplementation.cpp

diff --git a/plugin/CobaltImplementation.cpp b/plugin/CobaltImplementation.cpp
index 3be1428..a9ea8bb 100644
--- a/plugin/CobaltImplementation.cpp
+++ b/plugin/CobaltImplementation.cpp
@@ -258,6 +258,7 @@
       Block();
       SbRdkQuit();
       Wait(Thread::BLOCKED | Thread::STOPPED | Thread::STOPPING, Core::infinite);
+      std::quick_exit(0);
     }
 
     uint32_t Configure(PluginHost::IShell* service) {