[ALSA] ice1712: build fixes

CC [M]  sound/pci/ice1712/ice1712.o
sound/pci/ice1712/ice1712.c:290: error: snd_ice1712_mixer_digmix_route_ac97 causes a section type conflict
sound/pci/ice1712/ice1712.c:1630: error: snd_ice1712_eeprom causes a section type conflict
...
Gcc like its __devinitdata readable not const, it seems.  An alternative
fix would be to remove the __devinitdata attribute but that would result
in slight runtime bloat.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

sound/pci/ice1712/delta.h

@@ -46,7 +46,7 @@
 #define ICE1712_SUBDEVICE_MEDIASTATION	0x694c0100
 
 /* entry point */
-extern const struct snd_ice1712_card_info snd_ice1712_delta_cards[];
+extern struct snd_ice1712_card_info snd_ice1712_delta_cards[];
 
 
 /*