test: fix clean up on failure
test: fix clean up on failure

One of the failure paths were not updated to clean up on exit,
most likely due to rebase error. Fix the failure path to clean
up instead of simply exiting.

Fixes: 3f9e31d71d63 ("test: clean up on exit")

Signed-off-by: Anatoly Burakov <814e00d8f6e4e81b7ccc7e3e5a0bfec0078f0203@intel.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk