arm64: dts: rockchip: fix the address map for WDT0 and WDT1

Due to incorrect description in the TRM, the WDTs base address
should be fixed and swap them like this:
WDT0 - 0xff848000
WDT1 - 0xff840000

And, it is right that only WDT0 can generate global software reset.
We will update the TRM to fix it.
Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/boot/dts/rockchip/rk3399.dtsi

@@ -1002,9 +1002,9 @@ emmc_phy: phy@f780 {
 		};
 	};
 
-	watchdog@ff840000 {
+	watchdog@ff848000 {
 		compatible = "snps,dw-wdt";
-		reg = <0x0 0xff840000 0x0 0x100>;
+		reg = <0x0 0xff848000 0x0 0x100>;
 		clocks = <&cru PCLK_WDT>;
 		interrupts = <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>;
 	};