configure_cpu_debug: Clarify settings behavior

This makes it clear that the disabled settings only take effect when CPU Accuracy is set to Debug Mode.

src/yuzu/configuration/configure_cpu_debug.ui

@@ -34,7 +34,7 @@
             <br>
             If you're not sure what these do, keep all of these enabled.
             <br>
-            These settings only take effect when CPU Accuracy is "Debug Mode".
+            These settings, when disabled, only take effect when CPU Accuracy is "Debug Mode".
             </div>
            </string>
           </property>