uml: make various UML not shared

If another device shared the IRQ with this one we could get spurious IRQs. Since
mconsole_interrupt() calls recvfrom() and hangs when no message is received,
this is bogus.
In fact, under CONFIG_DEBUG_SHIRQ, it causes an hang at boot.

Likewise, various other IRQs cause similar hang, but those IRQ can be actually
shared.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Index: linux-2.6.git/arch/um/drivers/mconsole_kern.c
===================================================================
--- linux-2.6.git.orig/arch/um/drivers/mconsole_kern.c
+++ linux-2.6.git/arch/um/drivers/mconsole_kern.c
@@ -815,7 +815,7 @@ static int mconsole_init(void)
 	register_reboot_notifier(&reboot_notifier);
 
 	err = um_request_irq(MCONSOLE_IRQ, sock, IRQ_READ, mconsole_interrupt,
-			     IRQF_DISABLED | IRQF_SHARED | IRQF_SAMPLE_RANDOM,
+			     IRQF_DISABLED | IRQF_SAMPLE_RANDOM,
 			     "mconsole", (void *)sock);
 	if (err){
 		printk("Failed to get IRQ for management console\n");