arm/dt: tegra: Fix I2C nodes to match board files

With board files, all I2C busses run at 400KHz. Fix the device-tree
to be consistent with this. It's possible this is incorrect, but at
least it keeps the board files and device-tree consistent.

Also, disable any I2C controllers that the board files don't register,
also for consistency.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
diff --git a/arch/arm/boot/dts/tegra-trimslice.dts b/arch/arm/boot/dts/tegra-trimslice.dts
index cf8e561..b1aaa45 100644
--- a/arch/arm/boot/dts/tegra-trimslice.dts
+++ b/arch/arm/boot/dts/tegra-trimslice.dts
@@ -22,6 +22,10 @@
 		clock-frequency = <400000>;
 	};
 
+	i2c@7000d000 {
+		status = "disable";
+	};
+
 	serial@70006000 {
 		clock-frequency = < 216000000 >;
 	};