ARM: tegra: Add device tree nodes for flow controller

These nodes are required so that the flow controller driver can obtain
the I/O memory region from device tree rather than hard-coding it.
Signed-off-by: NThierry Reding <treding@nvidia.com>
Signed-off-by: NStephen Warren <swarren@nvidia.com>

arch/arm/boot/dts/tegra114.dtsi

@@ -157,6 +157,11 @@
 		#reset-cells = <1>;
 	};
 
+	flow-controller@60007000 {
+		compatible = "nvidia,tegra114-flowctrl";
+		reg = <0x60007000 0x1000>;
+	};
+
 	apbdma: dma@6000a000 {
 		compatible = "nvidia,tegra114-apbdma";
 		reg = <0x6000a000 0x1400>;

arch/arm/boot/dts/tegra124.dtsi

@@ -137,6 +137,11 @@
 		#reset-cells = <1>;
 	};
 
+	flow-controller@0,60007000 {
+		compatible = "nvidia,tegra124-flowctrl";
+		reg = <0x0 0x60007000 0x0 0x1000>;
+	};
+
 	gpio: gpio@0,6000d000 {
 		compatible = "nvidia,tegra124-gpio", "nvidia,tegra30-gpio";
 		reg = <0x0 0x6000d000 0x0 0x1000>;

arch/arm/boot/dts/tegra20.dtsi

@@ -190,6 +190,11 @@
 		#reset-cells = <1>;
 	};
 
+	flow-controller@60007000 {
+		compatible = "nvidia,tegra20-flowctrl";
+		reg = <0x60007000 0x1000>;
+	};
+
 	apbdma: dma@6000a000 {
 		compatible = "nvidia,tegra20-apbdma";
 		reg = <0x6000a000 0x1200>;

arch/arm/boot/dts/tegra30.dtsi

@@ -272,6 +272,11 @@
 		#reset-cells = <1>;
 	};
 
+	flow-controller@60007000 {
+		compatible = "nvidia,tegra30-flowctrl";
+		reg = <0x60007000 0x1000>;
+	};
+
 	apbdma: dma@6000a000 {
 		compatible = "nvidia,tegra30-apbdma", "nvidia,tegra20-apbdma";
 		reg = <0x6000a000 0x1400>;