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/ali5451/ali5451.c b/sound/pci/ali5451/ali5451.c
index 2def167..b444b74 100644
--- a/sound/pci/ali5451/ali5451.c
+++ b/sound/pci/ali5451/ali5451.c
@@ -2090,7 +2090,7 @@
 	codec->port = pci_resource_start(codec->pci, 0);
 
 	if (request_irq(codec->pci->irq, snd_ali_card_interrupt,
-			IRQF_SHARED, "ALI 5451", codec)) {
+			IRQF_SHARED, KBUILD_MODNAME, codec)) {
 		snd_printk(KERN_ERR "Unable to request irq.\n");
 		return -EBUSY;
 	}