Blacklist few Rally tests when verifying Airship

Blacklist few Rally tests when verifying Airship

Airship doesn't support live migration and resize server.
It blacklists them even if all other OPNFV installers have always
supported these capabilities.

They are still listed as mandatory in CNTT then they are kept in
CNTT RI compliance.

Here are the Rally tests blacklisted here:
  - 'NovaServers.boot_and_live_migrate_server'
  - 'NovaServers.boot_server_attach_created_volume_and_live_migrate'
  - 'NovaServers.boot_server_from_volume_and_live_migrate'
  - 'NovaServers.boot_and_migrate_server'
  - 'NovaServers.resize_server'

Change-Id: I26f69fadf0e632f1e3b5dcd14baf7fccd694550b
Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>