ARM: dts: imx6qdl-wandboard-revb: Fix "ERROR: trailing whitespace"

Fixed error in trailing whitespace in wandboard-rev1 dtsi.
Signed-off-by: Jagan Teki <jteki@openedev.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6qdl-wandboard-revb1.dtsi

@@ -28,7 +28,7 @@ MX6QDL_PAD_ENET_TXD0__GPIO1_IO30	0x80000000	/* WL_WAKE */
 				MX6QDL_PAD_EIM_D29__GPIO3_IO29		0x80000000	/* RGMII_nRST */
 				MX6QDL_PAD_EIM_DA13__GPIO3_IO13		0x80000000	/* BT_ON */
 				MX6QDL_PAD_EIM_DA14__GPIO3_IO14		0x80000000	/* BT_WAKE */
-				MX6QDL_PAD_EIM_DA15__GPIO3_IO15		0x80000000	/* BT_HOST_WAKE */				
+				MX6QDL_PAD_EIM_DA15__GPIO3_IO15		0x80000000	/* BT_HOST_WAKE */
 			>;
 		};
 	};