package/libsoup: always disable tls_check

package/libsoup: always disable tls_check

Always disable tls_check to avoid the following build failure since bump to
version 2.72.0 in commit 8e5f7f1cfc8fd7a9d5270f6a9707eb9eecfd21da:

../output-1/build/libsoup-2.72.0/meson.build:184:4: ERROR: Can not run test applications in this cross environment.

Indeed, tls_check will run code since
https://gitlab.gnome.org/GNOME/libsoup/-/commit/5c45253243a2deca4880d4f614f2932373445cf9

That is the only thing that this option does: it runs code to check that
libgio is built with TLS support.

While at it, also drop glib-networking build-time dependency

Also mark gnutls as a runtime dependency (it already was used as such).

Fixes:
 - http://autobuild.buildroot.org/results/9e539dc7185cfb81f18438dd36357cb49ef23a5a

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Reviewed-by: Adrian Perez de Castro <aperez@igalia.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>