spec: Take the ownership over '/usr/libexec/ipa/custodia'
Ideally, an every file on system has to have an owner.
'/usr/libexec/ipa/custodia' directory was added recently, but:
```
[root@dc ~]# LANG=C rpm -qf /usr/libexec/ipa/custodia/ipa-custodia-dmldap
freeipa-server-4.8.4-2.fc31.x86_64
[root@dc ~]# LANG=C rpm -qf /usr/libexec/ipa/custodia
file /usr/libexec/ipa/custodia is not owned by any package
```
ALTLinux build system warns about files or directories which were
'created' during a package installation but haven't an owner. So,
after the resyncing spec file to upstream's one my build fails.
Signed-off-by: Stanislav Levin <slev@altlinux.org>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>