tests: fix tracing.osawareness.openocd when thread names disabled

tracing.osawareness.openocd relies on the CONFIG_THREAD_NAME is
enabled, however we don't enable it in test config.

Fix that.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Evgeniy Paltsev <PaltsevEvgeniy@gmail.com>