audio: Enable all cards

...or they will bitrot to death.
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Message-id: 5181234A.6060504@web.de
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

default-configs/sound.mak

 CONFIG_SB16=y
-#CONFIG_ADLIB=y
-#CONFIG_GUS=y
-#CONFIG_CS4231A=y
+CONFIG_ADLIB=y
+CONFIG_GUS=y
+CONFIG_CS4231A=y