ARM: dts: armada-38x: Add arm_global_timer node

Since generic Cortex-A9 global timer is available after adding
it to compilation, enable its node in armada-38x.dtsi.
Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>

arch/arm/boot/dts/armada-38x.dtsi

@@ -154,6 +154,13 @@ scu@c000 {
 				reg = <0xc000 0x58>;
 			};
 
+			timer@c200 {
+				compatible = "arm,cortex-a9-global-timer";
+				reg = <0xc200 0x20>;
+				interrupts = <GIC_PPI 11 (IRQ_TYPE_EDGE_RISING | GIC_CPU_MASK_SIMPLE(2))>;
+				clocks = <&coreclk 2>;
+			};
+
 			timer@c600 {
 				compatible = "arm,cortex-a9-twd-timer";
 				reg = <0xc600 0x20>;