elog-gen.py: Support base and test yaml directories

Add an additional argument to pass the directory where the unit
test yaml files are located. Default the base directory to None
as this argument will be passed by the recipe during build time.

Change-Id: I1276d74e383e1517595371c3f6e31fa077eac43f
Signed-off-by: Adriana Kobylak <anoo@us.ibm.com>
2 files changed