ARM: dts: uniphier: enable I2C channel 2 of ProXstream2 Gentil board

This is used for on-board inter-connection.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

arch/arm/dts/uniphier-proxstream2-gentil.dts

@@ -27,6 +27,7 @@
 		serial1 = &serial1;
 		serial2 = &serial2;
 		i2c0 = &i2c0;
+		i2c2 = &i2c2;
 		i2c4 = &i2c4;
 		i2c5 = &i2c5;
 		i2c6 = &i2c6;
@@ -47,6 +48,10 @@
 	};
 };
 
+&i2c2 {
+	status = "okay";
+};
+
 &usb0 {
 	status = "okay";
 };