ALSA: cs5535 - Make OLPC-stuff depending on MGEODE_LX

The GPIO stuff for OLPC in cs5535audio_olpc.c is implemented only for
Geode-LX, and enabled only when CONFIG_MGEODE_LX=y.  Without this
config option, the driver gets build errors.

This patch adds a workaround to make it dependent on CONFIG_MGEODE_LX.

Ideally, the OLPC-GPIO stuff should be implemented in a way
independent from CPU type selection...

Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/cs5535audio/cs5535audio.h b/sound/pci/cs5535audio/cs5535audio.h
index 7777037..7a298ac 100644
--- a/sound/pci/cs5535audio/cs5535audio.h
+++ b/sound/pci/cs5535audio/cs5535audio.h
@@ -99,7 +99,7 @@
 int snd_cs5535audio_resume(struct pci_dev *pci);
 #endif
 
-#ifdef CONFIG_OLPC
+#if defined(CONFIG_OLPC) && defined(CONFIG_MGEODE_LX)
 void __devinit olpc_prequirks(struct snd_card *card,
 		struct snd_ac97_template *ac97);
 int __devinit olpc_quirks(struct snd_card *card, struct snd_ac97 *ac97);