ARM: dts: berlin2cd: fix local timer interrupt flags

Use the correct trigger type for Cortex-A9. This was fixed for several
other SoCs since the kernel started issuing a boot-time warning.

Signed-off-by: Alexander Monakov <amonakov@ispras.ru>
Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>

arch/arm/boot/dts/berlin2cd.dtsi

@@ -118,7 +118,7 @@
 		local-timer@ad0600 {
 			compatible = "arm,cortex-a9-twd-timer";
 			reg = <0xad0600 0x20>;
-			interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_HIGH)>;
+			interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_EDGE_RISING)>;
 			clocks = <&chip_clk CLKID_TWD>;
 		};