ARM: dts: aspeed: harma: correct Mellanox multi-host property

"mlx,multi-host" is using incorrect vendor prefix and is not documented.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240405064624.18997-4-krzysztof.kozlowski@linaro.orgSigned-off-by: Andrew Jeffery <andrew@codeconstruct.com.au>

arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-harma.dts

@@ -137,7 +137,7 @@ &mac3 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_rmii4_default>;
 	use-ncsi;
-	mlx,multi-host;
+	mellanox,multi-host;
 };
 
 &rtc {