This patch adds LFE mixer controls for laptops with a stac9200 and a mono
speaker pin with amplifier.
Signed-off-by: NRichard Fish <bigfish@asmallpond.org>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NJaroslav Kysela <perex@suse.cz>