ALSA: hda/realtek - Add alc_update_coef*_idx() helper
ALSA: hda/realtek - Add alc_update_coef*_idx() helper

... and rewrite a few open codes with them.

Signed-off-by: Takashi Iwai <4596b3305151c7ee743192a95d394341e3d3b644@suse.de>

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