Update debian/apertis/copyright

Signed-off-by: Vignesh Raman <vignesh.raman@collabora.com>

debian/apertis/copyright

 Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
 
+Files: *
+Copyright: 2016-2018, Collabora Ltd.
+License: LGPL-2.1
+
 Files: data/*
 Copyright: no-info-found
 License: LGPL-2.1+
@@ -8,6 +12,15 @@ Files: debian/*
 Copyright: 2018 Sjoerd Simons <sjoerd.simons@collabora.co.uk>
 License: LGPL-2+
 
-Files: * managerd/boot-state-nvmem.c managerd/boot-state-nvmem.h managerd/boot-state-nvmem.c managerd/boot-state-nvmem.h managerd/ostree-upgrader.c
-Copyright: 2018 Sjoerd Simons <sjoerd.simons@collabora.co.uk>
-License: LGPL-2+
+Files: managerd/boot-state-nvmem.c
+ managerd/boot-state-nvmem.h
+Copyright: 2020, Robert Bosch Power Tools GmbH
+ 2018, Collabora Ltd.
+License: LGPL-2.1
+
+Files: managerd/ostree-upgrader.c
+Copyright: 2017, 2018, Collabora Ltd.
+ 2015, Red Hat, Inc.
+ 2011, Colin Walters <walters@verbum.org>
+License: LGPL-2.1
+