[ALSA] oxygen: use AC97 interrupt

After an AC97 register read or write, use the AC97 interrupt instead of
polling to wait for the access to be completed.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

diff --cc sound/pci/oxygen/oxygen.h
Simple merge

diff --cc sound/pci/oxygen/oxygen_io.c
Simple merge

diff --cc sound/pci/oxygen/oxygen_lib.c
Simple merge