soc/xtensa/intel_adsp/tools: Dial back stream reset sleep

A full second is too much, and since "Ack local interrupt before
processing IPC" patch, it doesn't seem necessary. This whole second
wait would break tests that log too much content, as the firmware
is already running during the reset - and the host script wouldn't read
the contents, thus some of the logs would be overwritten.

Signed-off-by: Ederson de Souza <ederson.desouza@intel.com>