[ALSA] Remove IRQF_DISABLED for shared PCI irqs

Fix IRQ flags for PCI devices.
The shared IRQs for PCI devices shouldn't be allocated with
IRQF_DISABLED.  Also, when MSI is enabled, IRQF_SHARED shouldn't
be used.
The patch removes unnecessary cast in request_irq and free_irq,
too.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
diff --git a/sound/pci/ice1712/ice1724.c b/sound/pci/ice1712/ice1724.c
index e9cbfdf..3e3a102 100644
--- a/sound/pci/ice1712/ice1724.c
+++ b/sound/pci/ice1712/ice1724.c
@@ -2253,7 +2253,7 @@
 	ice->profi_port = pci_resource_start(pci, 1);
 
 	if (request_irq(pci->irq, snd_vt1724_interrupt,
-			IRQF_DISABLED|IRQF_SHARED, "ICE1724", ice)) {
+			IRQF_SHARED, "ICE1724", ice)) {
 		snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
 		snd_vt1724_free(ice);
 		return -EIO;