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/fm801.c b/sound/pci/fm801.c
index db3963c..f9123f0 100644
--- a/sound/pci/fm801.c
+++ b/sound/pci/fm801.c
@@ -1199,7 +1199,7 @@
 	chip->port = pci_resource_start(pci, 0);
 	if ((tea575x_tuner & TUNER_ONLY) == 0) {
 		if (request_irq(pci->irq, snd_fm801_interrupt, IRQF_SHARED,
-				"FM801", chip)) {
+				KBUILD_MODNAME, chip)) {
 			snd_printk(KERN_ERR "unable to grab IRQ %d\n", chip->irq);
 			snd_fm801_free(chip);
 			return -EBUSY;