Fixed missing return

Softlock explanation:
after effects are initialized in smo, nothing actually changes the state. It expects the state to always be initialized. With the previous testing, updating the states much like how we handle the memory pools continue to have the softlock(which is why I said it probably wasn't effects) after further examination it seems like effects need to be initialized but the state remains unchanged until further notice. For now, assertions are added for the aux buffers to see if they update, unable to check as I haven't gotten smo to actually update them yet.

src/audio_core/audio_renderer.cpp

@@ -58,7 +58,7 @@ public:
     }
 
     const EffectInStatus& GetInfo() const {
-        info;
+        return info;
     }
 
     EffectInStatus& Info() {