network/dns_resolver: fix memory leak

'reply' is allocated in Serialize() at line 120, but is not freed.
Pointed out by Clang Static Analyzer.

Change-Id: I9f7e0c5c2dcb976f11230ad8a5ba38d653b23d6d
Reviewed-on: https://review.haiku-os.org/c/haiku/+/5530
Reviewed-by: Fredrik Holmqvist <fredrik.holmqvist@gmail.com>
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>

Add missing includes after previous commit.

network/dns_resolver/server: Add missing break in switch.

CID 991278, but that also causes CID 991176, so both of those
are fixed. Does *not* fix #12156. Might fix some of the outstanding
NFSv4 issues but I didn't look too hard.

dns_resolver: Separate getaddrinfo() and reply serialization code

nfs4, dns_resolver: fix numerous style violations

dns_resolver: Fix addrinfo entries relocation

Move parsing getattrinfo() result out of dns_resolver module

Add dns_resolver module

dns_resolver module provides a means for all kernel mode code to resolve
DNS hostnames.

network/dns_resolver/server: Add missing break in switch.

CID 991278, but that also causes CID 991176, so both of those
are fixed. Does *not* fix #12156. Might fix some of the outstanding
NFSv4 issues but I didn't look too hard.

dns_resolver: Separate getaddrinfo() and reply serialization code

nfs4, dns_resolver: fix numerous style violations

dns_resolver: Fix addrinfo entries relocation

Move parsing getattrinfo() result out of dns_resolver module

Add dns_resolver module

dns_resolver module provides a means for all kernel mode code to resolve
DNS hostnames.