arm64: dts: imx8mq-librem5: fix mipi_csi description

Properties are not documented so lead to the following error:
'#address-cells', '#size-cells', 'interrupts' do not match any of the regexes: 'pinctrl-[0-9]+'

Fix this by removing unneeded properties.
Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi

@@ -1143,8 +1143,6 @@ &lcdif {
 };
 
 &mipi_csi1 {
-	#address-cells = <1>;
-	#size-cells = <0>;
 	status = "okay";
 
 	ports {