mediatek: redmi-ax6000: drop cs-gpios

'cs-gpios = <0>, <0>' is a hack in ath79 to override the incorrectly
specified maximum number of chipselects available in spi-ath79.c.
It's not needed here and must have been copied here by mistake.

Signed-off-by: Chuanhong Guo <[email protected]>

target/linux/mediatek/dts/mt7986a-xiaomi-redmi-router-ax6000.dtsi

@@ -125,7 +125,6 @@
 &spi0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&spi_flash_pins>;
-	cs-gpios = <0>, <0>;
 	status = "okay";
 
 	flash@0 {