Set default NUM_JOBS value to be the same accross all scripts (!1687) · Merge requests · OpenHW Group / backup-20241120 / cva6

Created by: valentinThomazic

Removed an hardcoded NUM_JOBS value in verif/regress/install-cva6.py which defeated the purpose of setting NUM_JOBS and could have potentially resulted in issues on some system configurations, since it was set quite high.
Set the default NUM_JOBS value to 1 in all scripts.

An unset NUM_JOBS environment variable should now results in a sequential execution of make jobs in all scripts.

Set default NUM_JOBS value to be the same accross all scripts