Changes

smdpp_Tests: remove excess newline

Related: SYS#7339
Change-Id: Ice4d472eadf259204a4a849273bccbca8728f2ec

smdpp_Tests/ES2Plus_Tests: move ES2+ code to smdpp_Tests.ttcn

In smdp_Tests.ttcn, the ES9+ and ES2+ interface are intermingled. This
is a problem since ES2+ and ES9+ are two independed interfaces and they
may use different certificates and may even be reachable under a different
FQDN from a different network interface.

To untable ES2+ and ES9+ we can move the ES2+ code from ES2Plus_Tests.ttcn
to smdpp_Tests.ttcn. Since ES2Plus_Tests.ttcn inherits from smdpp_Tests.ttcn
the ES2+ code will still be available to ES2Plus_Tests.ttcn.

This change will add the flexibility of ES2Plus_Tests.ttcn to
smdpp_Tests.ttcn. This means we can now freely configure the FQDN and the
certificates used with ES2+.

Related: SYS#7339
Change-Id: Ib59568379a9d454ea99d66550d6da8fd203681db

smdpp_Tests: add comments to mp_es9plus_server_port_ module parameters

Let's add an explanatory comment to mp_es9plus_server_port_nist and
mp_es9plus_server_port_brp

Related: SYS#7339
Change-Id: I7e3f0292256b21a75da5b756ee9af6ec58318de1

smdp_Tests: remove custom_tls_cert module parameters

The module parameters mp_use_custom_tls_cert and mp_custom_tls_cert_path
are no longer needed, so let's remove them.

Change-Id: Ie37da6986410b663378531f4f0d50d95b3068964
Related: SYS#7339