ARM: dt: tegra: remove legacy support-8bit property

The driver supports the new bus-width property, so remove the legacy
support-8bit property.
Signed-off-by: Stephen Warren <swarren@nvidia.com>

arch/arm/boot/dts/tegra-cardhu.dts

@@ -144,7 +144,6 @@ sdhci@78000000 {
 
 	sdhci@78000600 {
 		status = "okay";
-		support-8bit;
 		bus-width = <8>;
 	};
 

arch/arm/boot/dts/tegra-harmony.dts

@@ -307,7 +307,6 @@ sdhci@c8000600 {
 		cd-gpios = <&gpio 58 0>; /* gpio PH2 */
 		wp-gpios = <&gpio 59 0>; /* gpio PH3 */
 		power-gpios = <&gpio 70 0>; /* gpio PI6 */
-		support-8bit;
 		bus-width = <8>;
 	};
 

arch/arm/boot/dts/tegra-paz00.dts

@@ -301,7 +301,6 @@ sdhci@c8000000 {
 
 	sdhci@c8000600 {
 		status = "okay";
-		support-8bit;
 		bus-width = <8>;
 	};
 

arch/arm/boot/dts/tegra-seaboard.dts

@@ -397,7 +397,6 @@ sdhci@c8000400 {
 
 	sdhci@c8000600 {
 		status = "okay";
-		support-8bit;
 		bus-width = <8>;
 	};
 

arch/arm/boot/dts/tegra-ventana.dts

@@ -314,7 +314,6 @@ sdhci@c8000400 {
 
 	sdhci@c8000600 {
 		status = "okay";
-		support-8bit;
 		bus-width = <8>;
 	};