dt-bindings: arm: Document kryo385 cpu

Document the compatible string for the Kryo385 cpus found in qualcomm
SoCs.
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>

Documentation/devicetree/bindings/arm/cpus.txt

@@ -185,6 +185,7 @@ described below.
 			    "nvidia,tegra186-denver"
 			    "qcom,krait"
 			    "qcom,kryo"
+			    "qcom,kryo385"
 			    "qcom,scorpion"
 	- enable-method
 		Value type: <stringlist>