ALSA: hdspm - Add prototype declarations
ALSA: hdspm - Add prototype declarations

This patch only introduces prototype declarations, no real change. The
functions themselves are already present.

Signed-off-by: Adrian Knoth <b3e8ff7ac1c7e75661e16152a5dce1ff36a3e140@drcomp.erfurt.thur.de>
Signed-off-by: Takashi Iwai <4596b3305151c7ee743192a95d394341e3d3b644@suse.de>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs