controllers/cpuset: update to use test.sh

Remove useless returns and ret code checking.

cpuset_memory_spread_testset.sh:
 - treat node with not enough memory as TCONF, not failure

Signed-off-by: Jan Stancek <jstancek@redhat.com>
Acked-by: Cyril Hrubis <chrubis@suse.cz>
cpuset_syscall_testset.sh: check TCONF for do_syscall_test

If HAVE_DECL_MPOL_F_MEMS_ALLOWED is not defined, test returns -1,
which is evaluted as failure.

Treat it as TCONF, but don't break the execution, cpuset_syscall_testset.sh
script is expecting to handle stopping/waiting for children by itself.

Signed-off-by: Jan Stancek <jstancek@redhat.com>
Acked-by: Cyril Hrubis <chrubis@suse.cz>