mips: octeon: dts: Add I2C DT nodes

Add I2C DT nodes to the Octeon dts / dtsi files.

Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/arch/mips/dts/mrvl,octeon-ebb7304.dts b/arch/mips/dts/mrvl,octeon-ebb7304.dts
index 4e9c2de..096e5c8 100644
--- a/arch/mips/dts/mrvl,octeon-ebb7304.dts
+++ b/arch/mips/dts/mrvl,octeon-ebb7304.dts
@@ -94,3 +94,13 @@
 &uart0 {
 	clock-frequency = <1200000000>;
 };
+
+&i2c0 {
+	u-boot,dm-pre-reloc;	/* Needed early for DDR SPD EEPROM */
+	clock-frequency = <100000>;
+};
+
+&i2c1 {
+	u-boot,dm-pre-reloc;	/* Needed early for DDR SPD EEPROM */
+	clock-frequency = <100000>;
+};