General: Setup yuzu threads' microprofile, naming and registry.

src/yuzu/bootmanager.cpp

@@ -44,7 +44,9 @@ EmuThread::EmuThread() = default;
 EmuThread::~EmuThread() = default;
 
 void EmuThread::run() {
-    MicroProfileOnThreadCreate("EmuThread");
+    std::string name = "yuzu:EmuControlThread";
+    MicroProfileOnThreadCreate(name.c_str());
+    Common::SetCurrentThreadName(name.c_str());
 
     // Main process has been loaded. Make the context current to this thread and begin GPU and CPU
     // execution.

src/yuzu/main.cpp

@@ -925,6 +925,8 @@ bool GMainWindow::LoadROM(const QString& filename) {
         nullptr,                                     // E-Commerce
     });
 
+    system.RegisterHostThread();
+
     const Core::System::ResultStatus result{system.Load(*render_window, filename.toStdString())};
 
     const auto drd_callout =