systemd: add rdepends on libnss-resolve to nss-resolve PACKAGECONFIG

systemd: add rdepends on libnss-resolve to nss-resolve PACKAGECONFIG

Add a runtime dependency on libnss-resolve to nss-resolve PACKAGECONFIG in
systemd recipe. libnss-resolve provides nss-resolve which is a plug-in
module for the GNU Name Service Switch (NSS) functionality of the GNU C
Library (glibc) enabling it to resolve hostnames via the systemd-resolved
local network name resolution service.

See https://man7.org/linux/man-pages/man8/nss-resolve.8.html.

Runtime dependencies on other NSS plug-in modules are provided via other
PACKAGECONFIG entries in a similar way (myhostname - libnss-myhostname,
nss - libnss-resolve).

Signed-off-by: Weisser, Pascal <pascal.weisser.ext@karlstorz.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>