Cleanup warning replace deprecated call to serialLayer
Summary:
Clean up warning
use AtCore::currentPort instead of serialLayer version
Reviewers: laysrodrigues, tcanabrava, patrickelectric
Reviewed By: laysrodrigues, patrickelectric
Subscribers: Atelier: General Development
Tags: Atelier: General Development
Differential Revision: https://phabricator.kde.org/D16205