iqvlinux: bump to version 1.2.0.3

iqvlinux: bump to version 1.2.0.3

This package is really annoying since the archive name doesn't contain
the version (iqvlinux.tar.gz), so we have added an
iqvlinux-1.2.0.3.tar.gz tarball on sources.buildroot.net. The package
will try to download iqvlinux-1.2.0.3.tar.gz from the upstream
sourceforge location, which will fail, and then fallback to the backup
mirror, where it will successfully find iqvlinux-1.2.0.3.tar.gz.

Also add hashes for license files.

Signed-off-by: Carlos Santos <casantos@datacom.ind.br>
[Thomas: don't add custom logic for download, use
iqvlinux-1.2.0.3.tar.gz, which is hosted on sources.buildroot.net.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>