ALSA: use KBUILD_MODNAME for request_irq argument in sound/pci/*

The name argument of request_irq() appears in /proc/interrupts, and
it's quite ugly when the name entry contains a space or special letters.
In general, it's simpler and more readable when the module name appears
there, so let's replace all entries with KBUILD_MODNAME.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/cs5535audio/cs5535audio.c b/sound/pci/cs5535audio/cs5535audio.c
index a6a8777..10d22ed 100644
--- a/sound/pci/cs5535audio/cs5535audio.c
+++ b/sound/pci/cs5535audio/cs5535audio.c
@@ -311,7 +311,7 @@
 	cs5535au->port = pci_resource_start(pci, 0);
 
 	if (request_irq(pci->irq, snd_cs5535audio_interrupt,
-			IRQF_SHARED, "CS5535 Audio", cs5535au)) {
+			IRQF_SHARED, KBUILD_MODNAME, cs5535au)) {
 		snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
 		err = -EBUSY;
 		goto sndfail;