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/ad1889.c b/sound/pci/ad1889.c
index fe617ee..2015036 100644
--- a/sound/pci/ad1889.c
+++ b/sound/pci/ad1889.c
@@ -944,7 +944,7 @@
 	spin_lock_init(&chip->lock);	/* only now can we call ad1889_free */
 
 	if (request_irq(pci->irq, snd_ad1889_interrupt,
-			IRQF_SHARED, card->driver, chip)) {
+			IRQF_SHARED, KBUILD_MODNAME, chip)) {
 		printk(KERN_ERR PFX "cannot obtain IRQ %d\n", pci->irq);
 		snd_ad1889_free(chip);
 		return -EBUSY;