arm64: dts: ti: k3-am62-main: Remove eMMC High Speed DDR support

For eMMC, High Speed DDR mode is not supported [0], so remove
mmc-ddr-1_8v flag which adds the capability.

[0] https://www.ti.com/lit/gpn/am625

Fixes: c37c58f ("arm64: dts: ti: k3-am62: Add more peripheral nodes")
Cc: stable@vger.kernel.org
Signed-off-by: Judith Mendez <jm@ti.com>
Link: https://lore.kernel.org/r/20250707191250.3953990-1-jm@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>

Author: jmenti

arch/arm64/boot/dts/ti/k3-am62-main.dtsi

@@ -553,7 +553,6 @@
 		clocks = <&k3_clks 57 5>, <&k3_clks 57 6>;
 		clock-names = "clk_ahb", "clk_xin";
 		bus-width = <8>;
-		mmc-ddr-1_8v;
 		mmc-hs200-1_8v;
 		ti,clkbuf-sel = <0x7>;
 		ti,otap-del-sel-legacy = <0x0>;