ARM: tegra: Do not mark host1x as simple bus

The host1x is not a simple bus, so drop the corresponding compatible
string.
Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm/boot/dts/tegra114.dtsi

@@ -18,7 +18,7 @@ memory@80000000 {
 	};
 
 	host1x@50000000 {
-		compatible = "nvidia,tegra114-host1x", "simple-bus";
+		compatible = "nvidia,tegra114-host1x";
 		reg = <0x50000000 0x00028000>;
 		interrupts = <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>, /* syncpt */
 			     <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>; /* general */

arch/arm/boot/dts/tegra124.dtsi

@@ -85,7 +85,7 @@ pci@2,0 {
 	};
 
 	host1x@50000000 {
-		compatible = "nvidia,tegra124-host1x", "simple-bus";
+		compatible = "nvidia,tegra124-host1x";
 		reg = <0x0 0x50000000 0x0 0x00034000>;
 		interrupts = <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>, /* syncpt */
 			     <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>; /* general */

arch/arm/boot/dts/tegra20.dtsi

@@ -31,7 +31,7 @@ vde_pool: vde@400 {
 	};
 
 	host1x@50000000 {
-		compatible = "nvidia,tegra20-host1x", "simple-bus";
+		compatible = "nvidia,tegra20-host1x";
 		reg = <0x50000000 0x00024000>;
 		interrupts = <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>, /* syncpt */
 			     <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>; /* general */

arch/arm/boot/dts/tegra30.dtsi

@@ -111,7 +111,7 @@ vde_pool: vde@400 {
 	};
 
 	host1x@50000000 {
-		compatible = "nvidia,tegra30-host1x", "simple-bus";
+		compatible = "nvidia,tegra30-host1x";
 		reg = <0x50000000 0x00024000>;
 		interrupts = <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>, /* syncpt */
 			     <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>; /* general */