alsa-utils: interrupt streaming via signal broken

aplay/arecord (alsa-utils v1.0.27.2) cannot interrupt streaming
via CTRL-C. Fixed the issue by reverting buggy patches and
properly handling 'in_aborting' flag in appropriate functions.

Signed-off-by: Anant Agrawal <Anant_Agrawal@mentor.com>
Signed-off-by: Mikhail Durnev <mikhail_durnev@mentor.com>
Merge pull request #200 from mdurnev/mdurnev/hotfix101

alsa-utils: interrupt streaming via signal broken