Update compatibility.d files

Add an openzfs-2.3 compatibility file for the next release.

While there are no compatibility difference between Linux and
FreeBSD for 2.3 symlinks for the -linux and -freebsd names are
created for any scripts expecting that convention.

Reviewed-by: Rob Norris <robn@despairlabs.com>
Reviewed-by: Tino Reichardt <milky-zfs@mcmilk.de>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #16588

cmd/zpool/compatibility.d/openzfs-2.3

@@ -0,0 +1,45 @@
+# Features supported by OpenZFS 2.3 on Linux and FreeBSD
+allocation_classes
+async_destroy
+blake3
+block_cloning
+bookmark_v2
+bookmark_written
+bookmarks
+device_rebuild
+device_removal
+draid
+edonr
+embedded_data
+empty_bpobj
+enabled_txg
+encryption
+extensible_dataset
+fast_dedup
+filesystem_limits
+head_errlog
+hole_birth
+large_blocks
+large_dnode
+large_microzap
+livelist
+log_spacemap
+longname
+lz4_compress
+multi_vdev_crash_dump
+obsolete_counts
+project_quota
+raidz_expansion
+redacted_datasets
+redaction_bookmarks
+redaction_list_spill
+resilver_defer
+sha512
+skein
+spacemap_histogram
+spacemap_v2
+userobj_accounting
+vdev_zaps_v2
+zilsaxattr
+zpool_checkpoint
+zstd_compress