[ALSA] korg1212: fix typo

KORG1212 driver
Add a missing comma that made the stateName array one entry too short.
Signed-off-by: NClemens Ladisch <clemens@ladisch.de>

sound/pci/korg1212/korg1212.c

@@ -442,7 +442,7 @@ static char* stateName[] = {
                         "Setup for play",
                         "Playing",
                         "Monitor mode on",
-                        "Calibrating"
+			"Calibrating",
                         "Invalid"
 };