tests/qemu-iotests/149: Use more inclusive language in this test

Let's use 'unsupported_configs' and 'tested_configs' here
instead of non-inclusive words.

Message-ID: <20231122084000.809696-1-thuth@redhat.com>
Reviewed-by: "Daniel P. Berrangé" <berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2 files changed