ARM: STi: Add I2C config to B2000 and B2020 boards

This patch supplies I2C configuration to B2000 and B2020
based on either STiH415 or STiH416 SoCs.

Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>

arch/arm/boot/dts/stih41x-b2000.dtsi

@@ -37,5 +37,14 @@
 			};
 		};
 
+		/* HDMI Tx I2C */
+		i2c@fed41000 {
+			/* HDMI V1.3a supports Standard mode only */
+			clock-frequency = <100000>;
+			i2c-min-scl-pulse-width-us = <0>;
+			i2c-min-sda-pulse-width-us = <5>;
+
+			status = "okay";
+		};
 	};
 };

arch/arm/boot/dts/stih41x-b2020.dtsi

@@ -38,5 +38,27 @@
 				default-state = "off";
 			};
 		};
+
+		i2c@fed40000 {
+			status = "okay";
+		};
+
+		/* HDMI Tx I2C */
+		i2c@fed41000 {
+			/* HDMI V1.3a supports Standard mode only */
+			clock-frequency = <100000>;
+			i2c-min-scl-pulse-width-us = <0>;
+			i2c-min-sda-pulse-width-us = <5>;
+
+			status = "okay";
+		};
+
+		i2c@fe540000 {
+			status = "okay";
+		};
+
+		i2c@fe541000 {
+			status = "okay";
+		};
 	};
 };