arm64: dts: st: remove hs200 on dk board

Remove hs200 on dk board.

Change-Id: I725c85c29832740c09d0abd584764488dc4cd3f0
Signed-off-by: Christophe Kerello <christophe.kerello@foss.st.com>
Signed-off-by: Deepak Kumar <deepak.kumar01@st.com>
Reviewed-on: https://gerrit.st.com/c/mpu/oe/st/linux-stm32/+/409001
Domain-Review: Christophe KERELLO <christophe.kerello@st.com>
ACI: CIBUILD <MDG-smet-aci-builds@list.st.com>
Reviewed-by: Christophe KERELLO <christophe.kerello@st.com>
ACI: CITOOLS <MDG-smet-aci-reviews@list.st.com>

Author: Christophe Kerello

arch/arm64/boot/dts/st/stm32mp257f-dk.dts

@@ -650,7 +650,6 @@
 	vmmc-supply = <&scmi_vdd_emmc>;
 	vqmmc-supply = <&scmi_vddio2>;
 	mmc-ddr-1_8v;
-	mmc-hs200-1_8v;
 	status = "okay";
 };