ARM: dts: rockchip: add labels to the timer nodes on rk3066a

While the kernel doesn't care so much right now, boot loaders like
u-boot need to refine the node on their side, so to make life easier
for everyone add the labels to the timer nodes on rk3066a.

Signed-off-by: Johan Jonker <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Heiko Stuebner <[e-mail]>

arch/arm/boot/dts/rk3066a.dtsi

···
 				       <150000000>, <75000000>;
 	};
 
-	timer@2000e000 {
+	timer2: timer@2000e000 {
 		compatible = "snps,dw-apb-timer-osc";
 		reg = <0x2000e000 0x100>;
 		interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>;
···
 		};
 	};
 
-	timer@20038000 {
+	timer0: timer@20038000 {
 		compatible = "snps,dw-apb-timer-osc";
 		reg = <0x20038000 0x100>;
 		interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
···
 		clock-names = "timer", "pclk";
 	};
 
-	timer@2003a000 {
+	timer1: timer@2003a000 {
 		compatible = "snps,dw-apb-timer-osc";
 		reg = <0x2003a000 0x100>;
 		interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;