arm64: dts: renesas: beacon: Correct I2C bus speeds

For greater compatibility with upcoming kits that will reuse the baseboard
and SOM-level files, adjust the I2C speeds to make it the most compatible
with all devices.
Signed-off-by: Adam Ford <aford173@gmail.com>
Link: https://lore.kernel.org/r/20201213183759.223246-15-aford173@gmail.comSigned-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

arch/arm64/boot/dts/renesas/beacon-renesom-baseboard.dtsi

@@ -339,7 +339,7 @@ &hsusb {
 
 &i2c2 {
 	status = "okay";
-	clock-frequency = <100000>;
+	clock-frequency = <400000>;
 	pinctrl-0 = <&i2c2_pins>;
 	pinctrl-names = "default";
 

arch/arm64/boot/dts/renesas/beacon-renesom-som.dtsi

@@ -109,7 +109,7 @@ &hscif2 {
 
 &i2c4 {
 	status = "okay";
-	clock-frequency = <400000>;
+	clock-frequency = <100000>;
 
 	pca9654: gpio@20 {
 		compatible = "onnn,pca9654";