[ALSA] sound - fix .iface field of mixer control elements

Documentation,CS46xx driver,EMU10K1/EMU10K2 driver,AD1848 driver
SB16/AWE driver,CMIPCI driver,ENS1370/1+ driver,RME32 driver
RME96 driver,ICE1712 driver,ICE1724 driver,KORG1212 driver
RME HDSP driver,RME9652 driver
This patch changes .iface to SNDRV_CTL_ELEM_IFACE_MIXER whre _PCM or
_HWDEP was used in controls that are not associated with a specific PCM
(sub)stream or hwdep device, and changes some controls that got
inconsitent .iface values due to copy+paste errors.  Furthermore, it
makes sure that all control that do use _PCM or _HWDEP use the correct
number in the .device field.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
diff --git a/sound/isa/ad1848/ad1848_lib.c b/sound/isa/ad1848/ad1848_lib.c
index 8fb3db1..bc642dc 100644
--- a/sound/isa/ad1848/ad1848_lib.c
+++ b/sound/isa/ad1848/ad1848_lib.c
@@ -1196,6 +1196,7 @@
 			.put = snd_ad1848_put_double,
 		},
 		[AD1848_MIX_CAPTURE] = {
+			.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 			.info = snd_ad1848_info_mux,
 			.get = snd_ad1848_get_mux,
 			.put = snd_ad1848_put_mux,