Add skip for tests test_signed_image_upload_*

Skip tests if barbican_intagration_enabled = False

Related-PROD: PRODX-360
Change-Id: Ie4fcfc00b0152755e2c82dfd13c6b7e473242871
(cherry picked from commit 09d0f6ff10a83f44b9b999582a94a513ebbb89e8)
1 file changed