ARM: dts: msm: Update count unit for CPU bwmon on sdm845v2

The CPU bwmon counts in 64kB units on sdm845v2 instead of 1MB on
v1.

Change-Id: I1008d9459e23e34d229a435d28db5b683be4ed02
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
diff --git a/arch/arm64/boot/dts/qcom/sdm845-v2.dtsi b/arch/arm64/boot/dts/qcom/sdm845-v2.dtsi
index da30cf2..e937457 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-v2.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845-v2.dtsi
@@ -25,6 +25,10 @@
 	qcom,devfreq,freq-table = <50000000 200000000>;
 };
 
+&bwmon {
+	qcom,count-unit = <0x10000>;
+};
+
 &clock_gcc {
 	compatible = "qcom,gcc-sdm845-v2";
 };