arm64: dts: marvell: clearfog-gt-8k: set SFP power limit

The Clearfog GT-8K board is capable of supplying power up to 2W to SFP
modules. Make that explicit in the device-tree. Without this property
current kernel does not allow SFP modules that require more than 1W.
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>

arch/arm64/boot/dts/marvell/armada-8040-clearfog-gt-8k.dts

@@ -63,6 +63,7 @@ sfp_cp0_eth0: sfp-cp0-eth0 {
 		tx-disable-gpio = <&cp1_gpio1 29 GPIO_ACTIVE_HIGH>;
 		pinctrl-names = "default";
 		pinctrl-0 = <&cp0_sfp_present_pins &cp1_sfp_tx_disable_pins>;
+		maximum-power-milliwatt = <2000>;
 	};
 
 	leds {