tegra: dts: Sync tegra20.dtsi with Linux v4.4

This file has changed quite a bit since it was set up. Sync it back with
Linux v4.4. Adjust the users slightly to cope with the changes:

- the host1x node is now called host1x@50000000
- we need a clocks node to provide the clk32k_in phandle
- active usb nodes need status = "okay"
- active i2c nodes need status = "okay"

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
diff --git a/arch/arm/dts/tegra20-tec.dts b/arch/arm/dts/tegra20-tec.dts
index 94ba6dc..b16f10d 100644
--- a/arch/arm/dts/tegra20-tec.dts
+++ b/arch/arm/dts/tegra20-tec.dts
@@ -19,7 +19,7 @@
 		reg = <0x00000000 0x20000000>;
 	};
 
-	host1x {
+	host1x@50000000 {
 		status = "okay";
 
 		dc@54200000 {
@@ -52,14 +52,6 @@
 		status = "disabled";
 	};
 
-	usb@c5000000 {
-		status = "disabled";
-	};
-
-	usb@c5004000 {
-		status = "disabled";
-	};
-
 	lcd_panel: panel {
 		clock = <33260000>;
 		xres = <800>;