Allow unknown ci_installer or ci_scenario in is_compatible

ci_installer and ci_scenario are only tested if they are set. At least one of
theses variables must be set to get dependencies

It modifies the previous logic introduced by the first implementation of
tier_handler.py [1]

[1] https://gerrit.opnfv.org/gerrit/#/c/12579/

Change-Id: Icc9663a620f0b18f502b3eff7c0ce0d71e4e5910
Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

0 files changed, 0 insertions, 0 deletions