MIPS: Add IRQF_TIMER flag for timer interrupts

Along the lines of d6c585a4342a2ff627a29f9aea77c5ed4cd76023, add IRQF_TIMER
flag for all timer interrupts  This ensures that timer interrupts won't be
disabled on suspend and not threaded for PREEMPT_RT.

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/kernel/cevt-gt641xx.c b/arch/mips/kernel/cevt-gt641xx.c
index 92351e0..f5d265e 100644
--- a/arch/mips/kernel/cevt-gt641xx.c
+++ b/arch/mips/kernel/cevt-gt641xx.c
@@ -113,7 +113,7 @@
 
 static struct irqaction gt641xx_timer0_irqaction = {
 	.handler	= gt641xx_timer0_interrupt,
-	.flags		= IRQF_DISABLED | IRQF_PERCPU,
+	.flags		= IRQF_DISABLED | IRQF_PERCPU | IRQF_TIMER,
 	.name		= "gt641xx_timer0",
 };