package/fastd: bump to v19

package/fastd: bump to v19

Maintenance release, most important is OpenSSL 1.1+ support. See full
release notes for details:

https://fastd.readthedocs.io/en/stable/releases/v19.html

Two patches went upstream.  The last remaining patch was not touched,
LTO might not work as expected, but upstream dropped CMake in favour
of the meson build system after v19, so it seemed not worth the
effort.

The hash of the license file is updated due to a copyright year
change.

Signed-off-by: Alexander Dahl <post@lespocky.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>