ARM: dts: imx6dl: add a new pinctrl for ecspi1

This new pinctrl is used in the imx6dl-sabresd board.
Signed-off-by: Huang Shijie <b32955@freescale.com>

arch/arm/boot/dts/imx6dl.dtsi

@@ -56,6 +56,14 @@ MX6DL_PAD_EIM_D18__ECSPI1_MOSI 0x100b1
 							MX6DL_PAD_EIM_D16__ECSPI1_SCLK 0x100b1
 						>;
 					};
+
+					pinctrl_ecspi1_2: ecspi1grp-2 {
+						fsl,pins = <
+							MX6DL_PAD_KEY_COL1__ECSPI1_MISO 0x100b1
+							MX6DL_PAD_KEY_ROW0__ECSPI1_MOSI 0x100b1
+							MX6DL_PAD_KEY_COL0__ECSPI1_SCLK 0x100b1
+						>;
+					};
 				};
 
 				enet {