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/oxygen/oxygen_lib.c b/sound/pci/oxygen/oxygen_lib.c
index 70b7398..82311fc 100644
--- a/sound/pci/oxygen/oxygen_lib.c
+++ b/sound/pci/oxygen/oxygen_lib.c
@@ -655,7 +655,7 @@
 	chip->model.init(chip);
 
 	err = request_irq(pci->irq, oxygen_interrupt, IRQF_SHARED,
-			  DRIVER, chip);
+			  KBUILD_MODNAME, chip);
 	if (err < 0) {
 		snd_printk(KERN_ERR "cannot grab interrupt %d\n", pci->irq);
 		goto err_card;