ALSA: ice1712: Replacing hex with #defines

Adds to the readability of the ice1712 driver.

Signed-off-by: Konstantinos Tsimpoukas <kostaslinuxxx@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/ice1712/ice1712.c b/sound/pci/ice1712/ice1712.c
index 87f7fc4..206ed2c 100644
--- a/sound/pci/ice1712/ice1712.c
+++ b/sound/pci/ice1712/ice1712.c
@@ -2528,7 +2528,7 @@
 	if (!ice->port)
 		goto __hw_end;
 	/* mask all interrupts */
-	outb(0xc0, ICEMT(ice, IRQ));
+	outb(ICE1712_MULTI_CAPTURE | ICE1712_MULTI_PLAYBACK, ICEMT(ice, IRQ));
 	outb(0xff, ICEREG(ice, IRQMASK));
 	/* --- */
 __hw_end: