Fix key-add call, for not-enabled user by default

 * Fix .kitchen.yml:
   Make sure kitchen test dependencies formulas
   are always fetched from correct branch

(cherry picked from commit 507f89b3326d7b9dff8802aedaa23a6c322efb37)
(cherry picked from commit a1859ca31f6e046fe3898e832a5908d84b6e93ca)

Change-Id: Ied37c40263134466dbaeab6fc61113f748e05b49
Prod-related: PROD-29155 (PROD:29155)
2 files changed