zfs: update to 2.1.7.

[zdykstra]

Testing the changes

• I tested the changes in this PR: YES

Built on x86_64, rebooted with kernel 6.0.10, root-on-ZFS. Could use a few more people checking this out / letting it bake for a day or three.

@Vaelatern @ahesford

[ahesford]

Boots an RPi 4, aarch64.

[sgn]

Can we split:

/usr/lib/libnvpair.so.3 -> /usr/lib/libnvpair.so.3.0.0
/usr/lib/libuutil.so.3 -> /usr/lib/libuutil.so.3.0.0
/usr/lib/libzfs.so.4 -> /usr/lib/libzfs.so.4.1.0
/usr/lib/libzfs_core.so.3 -> /usr/lib/libzfs_core.so.3.0.0
/usr/lib/libzfsbootenv.so.1 -> /usr/lib/libzfsbootenv.so.1.0.0
/usr/lib/libzpool.so.5 -> /usr/lib/libzpool.so.5.0.0

and make zfs-devel and zfs depends on libzfs? building pam_zfscrypt pulls the whole zfs in is annoying because of building dkms.

[Vaelatern]

I'm OK with splitting those files into a subpackage.

[zdykstra]

I'm OK with splitting those files into a subpackage.

Do you want to handle that, or do you want me to do it?