ALSA: Include linux/io.h instead of asm/io.h

Nowadays it's recommended.  Replace all in a shot.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/sonicvibes.c b/sound/pci/sonicvibes.c
index 34cee5c..0f40624 100644
--- a/sound/pci/sonicvibes.c
+++ b/sound/pci/sonicvibes.c
@@ -30,6 +30,7 @@
 #include <linux/gameport.h>
 #include <linux/module.h>
 #include <linux/dma-mapping.h>
+#include <linux/io.h>
 
 #include <sound/core.h>
 #include <sound/pcm.h>
@@ -39,8 +40,6 @@
 #include <sound/opl3.h>
 #include <sound/initval.h>
 
-#include <asm/io.h>
-
 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
 MODULE_DESCRIPTION("S3 SonicVibes PCI");
 MODULE_LICENSE("GPL");