Copyright for psst source package in Lunar

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: psst
Upstream-Contact: Colin King 
Source: https://01.org/power-stress-and-shaping-tool/downloads

Files: *
Copyright: 2017-2022, Intel Corporation
License: GPL-2
 On Debian systems, the complete text of the GNU General Public
 License can be found in `/usr/share/common-licenses/GPL-2'.

Files: debian/*
Copyright: 2017-2021, Canonical Ltd
           2021-2022, Colin Ian King
License: GPL-2+
 On Debian systems, the complete text of the GNU General Public
 License can be found in `/usr/share/common-licenses/GPL-2'.