arm64: dts: freescale: verdin-imx95: drive I2C7 at 400kHz

Reduce the I2C7 bus speed from 1 MHz to 400 kHz, which is the
maximum specified frequency for the ST 24C02.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

arch/arm64/boot/dts/freescale/imx95-19x19-verdin-evk.dts

@@ -201,7 +201,7 @@ &lpi2c6 {
 };
 
 &lpi2c7 {
-	clock-frequency = <1000000>;
+	clock-frequency = <400000>;
 	pinctrl-names = "default", "gpio";
 	pinctrl-0 = <&pinctrl_lpi2c7>;
 	pinctrl-1 = <&pinctrl_lpi2c7_gpio>;