ARM: dts: OMAP5: Specify nonsecure PPI IRQ for arch timer

Specify both secure as well as nonsecure PPI IRQ for arch
timer. This fixes the following errors seen on DT OMAP5 boot..

[    0.000000] arch_timer: No interrupt available, giving up

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Benoit Cousson <benoit.cousson@linaro.org>

arch/arm/boot/dts/omap5.dtsi

@@ -41,8 +41,9 @@
 
 	timer {
 		compatible = "arm,armv7-timer";
-		/* 14th PPI IRQ, active low level-sensitive */
-		interrupts = <1 14 0x308>;
+		/* PPI secure/nonsecure IRQ, active low level-sensitive */
+		interrupts = <1 13 0x308>,
+			     <1 14 0x308>;
 		clock-frequency = <6144000>;
 	};