Port yuzu-emu/yuzu#4528: "common: Make use of [[nodiscard]] where applicable" (#5535)

Co-authored-by: LC <712067+lioncash@users.noreply.github.com>

src/core/hle/service/cecd/cecd.cpp

@@ -1361,7 +1361,8 @@ void Module::CheckAndUpdateFile(const CecDataPathType path_type, const u32 ncch_
     case CecDataPathType::MboxData:
     case CecDataPathType::MboxIcon:
     case CecDataPathType::MboxTitle:
-    default: {}
+    default: {
+    }
     }
 }