ALSA: emu10k1: make E-MU dock monitoring interrupt-driven

... instead of using a one-second polling timer.

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230710065956.1246364-1-oswald.buddenhagen@gmx.de


Signed-off-by: Takashi Iwai <tiwai@suse.de>