[MIPS] Ocelot G: Use CPU_MASK_NONE instead of 0 to initialize cpu mask.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/momentum/ocelot_g/gt-irq.c

@@ -178,7 +178,7 @@ void gt64240_time_init(void)
 	timer.name = "timer";
 	timer.dev_id = NULL;
 	timer.next = NULL;
-	timer.mask = 0;
+	timer.mask = CPU_MASK_NONE;
 	irq_desc[6].action = &timer;
 
 	enable_irq(6);