Use lockutils wrapper to set OSLO_LOCK_PATH for run_tests.sh

Use lockutils wrapper to get OSLO_LOCK_PATH set for tests.  This is
required for run_tests.sh to pass

Change-Id: I276b07ca41582c04899b5fbc0632c056463ab4c7
Closes-Bug: #1303584
Merge "Use lockutils wrapper to set OSLO_LOCK_PATH for run_tests.sh"