ALSA: wss_lib: fix AZT2320 probe.

After the transition from cs4321_lib to wss_lib, azt2320 probe visits
snd_ad1848_probe during detection. It expects register 0 (LEFT_INPUT)
to be able to retain the value 0xaa during detection but AZT2320 does
not support MIC gain meaning it reads back as 0x8a instead.
Signed-off-by: NRene Herman <rene.herman@gmail.com>
Acked-by: NKrzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NJaroslav Kysela <perex@perex.cz>

sound/isa/wss/wss_lib.c

@@ -1168,12 +1168,14 @@ static int snd_ad1848_probe(struct snd_wss *chip)
 				ad1847 = 1;
 				break;
 			}
-			if (snd_wss_in(chip, CS4231_LEFT_INPUT) == 0xaa &&
-			    rev == 0x45) {
+			if (rev == 0x45) {
+				rev = snd_wss_in(chip, CS4231_LEFT_INPUT);
+				if (rev == 0xaa || rev == 0x8a) {
 					spin_unlock_irqrestore(&chip->reg_lock, flags);
 					id = 1;
 					break;
 				}
+			}
 			spin_unlock_irqrestore(&chip->reg_lock, flags);
 		}
 	}