ramips: dts: add 'broken-cd' for VoCore2 MMC

This model doesn't have cd pin on its MicroSD card slot.

Fixes: https://github.com/openwrt/openwrt/issues/20288
Fixes: https://github.com/openwrt/openwrt/issues/22603
Signed-off-by: Shiji Yang <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/21568
Signed-off-by: Hauke Mehrtens <[email protected]>

target/linux/ramips/dts/mt7628an_vocore_vocore2.dtsi

@@ -94,6 +94,7 @@
 &sdhci {
 	status = "okay";
 
+	broken-cd;
 	pinctrl-0 = <&sdxc_iot_mode>;
 	pinctrl-1 = <&sdxc_iot_mode>;
 };