Fix an UI bug in AppRTC Demo where disable hardware AGC/NS summary was not getting updated.

In Android AppRTC Demo, there was a bug where toggling disable hardware
AGC/NS would not be reflected into the summary of those settings. This
change fixes this issue.

Review-Url: https://codereview.webrtc.org/2184223003
Cr-Commit-Position: refs/heads/master@{#13551}

webrtc/examples/androidapp/src/org/appspot/apprtc/SettingsActivity.java

@@ -190,6 +190,8 @@ public class SettingsActivity extends Activity
         || key.equals(keyprefAecDump)
         || key.equals(keyprefOpenSLES)
         || key.equals(keyprefDisableBuiltInAEC)
+        || key.equals(keyprefDisableBuiltInAGC)
+        || key.equals(keyprefDisableBuiltInNS)
         || key.equals(keyPrefDisplayHud)) {
       updateSummaryB(sharedPreferences, key);
     }