Update compatibility.d files

Add an openzfs-2.4 compatibility file for the next release.

While there are no compatibility difference between Linux and
FreeBSD for 2.4 symlinks for the -linux and -freebsd names are
created for any scripts expecting that convention.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: ofthesun9 <olivier@ofthesun.net>
Closes #17672
Closes #17673