net/samba422: Make ADS option imply LDAP option

If ADS option is on and LDAP option is off, build fails at configure
phase as below.

need ber_sockbuf_add_io() and LDAP_OPT_SOCKBUF for SASL and TLS support
Active Directory support not available: LDAP support is not available.
Active Directory support not found. Use --without-ads for building without
Active Directory support. ADS support improves communication with Active
Directory domain controllers.
(complete log in
/wrkdirs/usr/ports/net/samba422/work/samba-4.22.3/bin/config.log)
===>  Script "configure" failed unexpectedly.
Please report the problem to samba@FreeBSD.org [maintainer] and attach the
"/wrkdirs/usr/ports/net/samba422/work/samba-4.22.3/bin/config.log" including
the output of the failure of your make command. Also, it might be a good idea
to provide an overview of all packages installed on your system (e.g. a
/usr/local/sbin/pkg-static info -g -Ea).

net/samba422: Fix plist error after commit 6c23ee846dd4

After commit 6c23ee846dd4 plist error happens with default options
setting as below.

====> Checking for pkg-plist issues (check-plist)
===> Parsing plist
===> Checking for items in STAGEDIR missing from pkg-plist
===> Checking for items in pkg-plist which are not in STAGEDIR
Error: Missing: lib/samba4/modules/ldb/ldap.so
===> Error: Plist issues found.
*** Error code 1

Stop.
make: stopped in /usr/ports/net/samba422

While here, use %%SAMBA4_MODULEDIR%% for path of
lib/samba4/modules/ldb/ldap.so and sort plist.

Fixes:	6c23ee846dd4 net/samba422: Fix plist when AD_DC and LDAP are OFF

net/samba422: Fix pkg-plist when building without PYTHON3

The build fails at the packaging step because it tries to
include a file that doesn't exist without PYTHON3.

PR:		290439
Reported by:	Toshimichi Masubuchi
Sponsored by:	Klara, Inc. (0mp)
Co-authored-by:	Toshimichi Masubuchi <t.masub@gmail.com>

net/samba422: Fix plist when AD_DC and LDAP are OFF

PR:		290441
Reported by:	Trond Endrestøl
Sponsored by:	Klara, Inc. (0mp)
Co-authored-by:	Trond Endrestøl <Trond.Endrestol@ximalas.info>

net/samba422: Do not keep ldb private

Since version 4.22, Samba requires ldb to be bundled. This is
problematic for packaging because ldb is also used by ports such as
security/sssd2. In the past, we used a standalone ldb port to address
that.

Luckily, it turns out that Samba can turn its private libraries into
public ones via its configure script. This commit makes Samba's ldb
public.

PR:		289272
Sponsored by:	Klara, Inc.
Differential Revision:	https://reviews.freebsd.org/D52377

net/samba422: Update to 4.22.3

Most of this patch is Andrej Ebert's work. I fixed some of the remaining
issues and prepared it for landing in the ports tree under sponsorship
from Klara, Inc.

Changes in the port include:

- There's an unconditional dependency on devel/icu now,
  since Samba pulls it in if it's in the build environment and
  complains afterwards if icu is bumped without a Samba rebuild.

- Remove GSSAPI Builtin converters/p5-JSON build dependency,
  it's not needed since 4.20 as per upstream:
  https://www.samba.org/samba/history/samba-4.20.0.html

net/samba422: Repocopy from net/samba420

PR:		287985
Reported by:	Andrej Ebert <andrej@ebert.su>
Sponsored by:	Klara, Inc.
Differential Revision:	https://reviews.freebsd.org/D52167