Bug 1981673 - Turn on Fenix DoH UI on by default and let it ride the trains r=sfamisa,necko-reviewers,android-reviewers,kershaw

Differential Revision: https://phabricator.services.mozilla.com/D260252

mobile/android/fenix/app/nimbus.fml.yaml

@@ -863,7 +863,7 @@ features:
         description: >
           When `true`, include DoH settings in the settings UI.
         type: Boolean
-        default: false
+        default: true
       autoselect-enabled:
         description: >
           Controls the network.android_doh.autoselect_enabled pref and automatically chooses a DoH provider when Default Protection mode is selected.