wrong test in alsa-info.sh

alsa-project/alsa-utils issue #115 was opened from mhampl:

In line 691 of alsa_info.sh script (version 0.5.0) a test for $TEMPDIR/alsa-usbstream.tmp is needed instead of $TEMPDIR/lsusb.tmp

Issue URL : https://github.com/alsa-project/alsa-utils/issues/115 Repository URL: https://github.com/alsa-project/alsa-utils