Switch tests sims to lightynode by default

Switch tests sims to lightynode by default

- use lightynode as default sims
- adapt ROADM devices 1.2.1 sample configs
- in tox.ini force honeynode for tests with:
  - device notifications support
    The netconf client connector is ready for lightynode sims.
    But, some tests are still failing and are under investigation.
  - 7.1 devices
    Only 7.1 devices portmapping function tests pass.

JIRA: TRNSPRTPCE-754
Signed-off-by: guillaume.lambert <guillaume.lambert@orange.com>
Co-authored-by: Christophe Betoule <christophe.betoule@orange.com>
Change-Id: If1d8e649e82df7b4c17b4c91fa2e13f77cf3e911