Fix the Host_GetKeyState deadlock caused by Billiard's latest changes.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@7304 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Core/DolphinWX/Src/FrameTools.cpp

@@ -1045,7 +1045,7 @@ void CFrame::DoStop()
 
 #ifdef __WXGTK__
 		// Make sure the app doesn't hang waiting on a keystate check 
-		keystate_event.Set();
+		keystate_event.Wait();
 #endif
 
 		BootManager::Stop();