msg/async: don't abort when public addrs mismatch bind addrs

msg/async: don't abort when public addrs mismatch bind addrs

Before the 69b47c805fdd2ecd4f58547d58c9f019fc62d447 (PR #50153)
a mismatch (in number or types of stored `entity_addr_t`) between
public addrs and bind addrs vectors was ignored and the former
was taking over anything else -- it was possible to e.g. bind to
both v1 and v2 addresses but expose v2 only. Unfortunately, that's
exactly how Rook configures ceph-mon:

```
debug 2023-03-16T21:01:48.389+0000 7f99822bf8c0  0 starting mon.a rank 0 at public addrs v2:172.30.122.144:3300/0 at bind addrs [v2:10.129.2.21:3300/0,v1:10.129.2.21:6789/0] mon_data /var/lib/ceph/mon/ceph-a fsid acc14d1b-fb2b-4f01-8b61-6e7cb26e9200
```

The consequnece is the following abort:

```
ceph version 17.2.5-1338.el9cp (5adce3015143c7c2cc135a71368be194744f5761) quincy (stable)
1: (ceph::__ceph_abort(char const*, int, char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)+0xd3) [0x7ff05392c1a6]
2: /usr/lib64/ceph/libceph-common.so.2(+0x165ac1) [0x7ff05394eac1]
3: (AsyncMessenger::bindv(entity_addrvec_t const&, std::optional<entity_addrvec_t>)+0x1fe) [0x7ff053baa0ce]
4: main()
5: /lib64/libc.so.6(+0x3feb0) [0x7ff053048eb0]
6: __libc_start_main()
7: _start()
debug *** Caught signal (Aborted) **  in thread 7ff052ab18c0 thread_name:ceph-mon 2023-03-16T09:56:35.995+0000 7ff052ab18c0 -1 /builddir/build/BUILD/ceph-17.2.5-1338-g484e8dbb/src/msg/msg_types.h: In function 'void entity_addr_t::set_port(int)' thread 7ff052ab18c0 time 2023-03-16T09:56:35.996339+0000 /builddir/build/BUILD/ceph-17.2.5-1338-g484e8dbb/src/msg/msg_types.h: 359: ceph_abort_msg("abort() called")
```

This commit brings the original logic back but in a way that
preserves the port numbers figured out by. e.g. `Processor::bind`.

Fixes: https://tracker.ceph.com/issues/59100
Signed-off-by: Radosław Zarzyński <rzarzyns@redhat.com>