`common.sh` - add common function to start fuzzers in
parallel and quick sequential run
add `get_testn` - get number of test to run in parallel
Signed-off-by: Sebastian Brzezinka <sebastian.brzezinka@intel.com>
Change-Id: I7c70b5221887c29b495a1632545877ca7cca0945
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/16323
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
