dts: am57xx-idk: disable HS200 support

HS200 cannot be supported on mmc2, because the IO lines of mmc2 are
connected to 3.3v.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>

arch/arm/dts/am57xx-idk-common.dtsi

@@ -413,6 +413,8 @@
 	bus-width = <8>;
 	ti,non-removable;
 	max-frequency = <96000000>;
+	no-1-8-v;
+	/delete-property/ mmc-hs200-1_8v;
 };
 
 &dcan1 {