ARM: dts: imx: Fix "ERROR: code indent should use tabs where possible"

Fixed code indent tabs in respetcive imx23, imx51, imx53, imx6dl, imx6q
and imx6sx dtsi and dts files.

Signed-off-by: Jagan Teki <jagan@openedev.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
diff --git a/arch/arm/boot/dts/imx6dl-tx6dl-comtft.dts b/arch/arm/boot/dts/imx6dl-tx6dl-comtft.dts
index 063fe75..aac42ac 100644
--- a/arch/arm/boot/dts/imx6dl-tx6dl-comtft.dts
+++ b/arch/arm/boot/dts/imx6dl-tx6dl-comtft.dts
@@ -105,7 +105,7 @@
 				pixelclk-active = <1>;
 			};
 		};
-        };
+	};
 };
 
 &can1 {