arm64: dts: qcom: qcs404: Update the compatible for watchdog timer

Update the compatible for QCS404 watchdog timer with proper
SoC specific compatible.
Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Link: https://lore.kernel.org/r/757995875cc12d3f5a8f5fd5659b04653950970a.1576211720.git.saiprakash.ranjan@codeaurora.orgSigned-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arch/arm64/boot/dts/qcom/qcs404.dtsi

@@ -905,7 +905,7 @@ apcs_glb: mailbox@b011000 {
 		};
 
 		watchdog@b017000 {
-			compatible = "qcom,kpss-wdt";
+			compatible = "qcom,apss-wdt-qcs404", "qcom,kpss-wdt";
 			reg = <0x0b017000 0x1000>;
 			clocks = <&sleep_clk>;
 		};