LU-11669 tests: add project in yml_test_group()

LU-11669 tests: add project in yml_test_group()

This patch fixes yml_test_group() in yaml.sh to
add test project name, which is required in
results.yml for Maloo to parse.

Test-Parameters: trivial

Change-Id: I0ae563d855dc2d28eaea85e86b1cb23d2428988b
Signed-off-by: Jian Yu <yujian@whamcloud.com>
Reviewed-on: https://review.whamcloud.com/33658
Tested-by: Jenkins
Reviewed-by: Leonel Ochoa <lochoa@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: James Nunez <jnunez@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>