ARM: dts: armada-xp-98dx3236: Switch to armada-38x-uart serial node

Switch to the "marvell,armada-38x-uart" driver variant to empty
the UART buffer before writing to the UART_LCR register.
Signed-off-by: Joshua Scott <joshua.scott@alliedtelesis.co.nz>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Gregory CLEMENT <gregory.clement@bootlin.com>.
Cc: stable@vger.kernel.org
Fixes: 43e28ba8 ("ARM: dts: Use armada-370-xp as a base for armada-xp-98dx3236")
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>

arch/arm/boot/dts/armada-xp-98dx3236.dtsi

@@ -336,3 +336,11 @@ &sdio {
 	status = "disabled";
 };
 
+&uart0 {
+	compatible = "marvell,armada-38x-uart";
+};
+
+&uart1 {
+	compatible = "marvell,armada-38x-uart";
+};
+