mailmap: add entry for Jonas Gorski

The openwrt.org email address is long defunct, but still pop ups from
time to time when asking get_maintainer.pl. So add an entry to my
currently used address.

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Link: https://lore.kernel.org/r/20230708195309.72767-2-jonas.gorski@gmail.com


Signed-off-by: Mark Brown <broonie@kernel.org>