CPU: Refactor load delay handling

Now works when mixing interpreter and recompiler code.

src/core/cpu_recompiler_thunks.cpp

@@ -40,4 +40,9 @@ bool Thunks::InterpretInstruction(Core* cpu)
   return cpu->m_exception_raised;
 }
 
+void Thunks::UpdateLoadDelay(Core* cpu)
+{
+  cpu->UpdateLoadDelay();
+}
+
 } // namespace CPU::Recompiler