Adding portal session secret (#2283) (#2289)

Co-authored-by: SMY ALTAMASH <30286162+SMYALTAMASH@users.noreply.github.com>

ansible/roles/stack-sunbird/templates/sunbird_player.env

@@ -152,4 +152,4 @@ sunbird_enable_api_whitelist={{sunbird_enable_api_whitelist|default('true')}}
 # Changing the secret value will invalidate all existing sessions.
 # In order to rotate the secret without invalidating sessions, provide an array of secrets,
 # with the new secret as first element of the array, and followed by previous secrets.
-# sunbird_portal_session_secret={{sunbird_portal_session_secret}}
+sunbird_portal_session_secret={{sunbird_portal_session_secret}}