Fix bug repos_dir -> REPOS_DIR
Fix bug repos_dir -> REPOS_DIR

JIRA: FUNCTEST-533

Change-Id: Ie98089c54326b255ffd7c6cad81abf29ad52f4a2
Signed-off-by: jose.lausuch <a4ed9890ad7f6494ac84a749f29a4dc3449a1186@ericsson.com>

mywulin/functest,opnfv/functest,mywulin/functest,opnfv/functest