[MIPS] cleanup struct irqaction initializers

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
CC: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/kernel/i8259.c

@@ -303,7 +303,9 @@ void init_8259A(int auto_eoi)
  * IRQ2 is cascade interrupt to second interrupt controller
  */
 static struct irqaction irq2 = {
-	no_action, 0, CPU_MASK_NONE, "cascade", NULL, NULL
+	.handler = no_action,
+	.mask = CPU_MASK_NONE,
+	.name = "cascade",
 };
 
 static struct resource pic1_io_resource = {