Add support for querying and parsing SRV DNS records to nslookup_lede.c
This patch is based on http://lists.busybox.net/pipermail/busybox/2019-June/087359.html
Signed-off-by: Perry Melange <isprotejesvalkata@gmail.com>
[reword subject, bump PKG_RELEASE]
Signed-off-by: Paul Spooren <mail@aparcar.org>