ARM: i.MX53: add csi pinctrl

Add a group to the csi pinctrl.
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

arch/arm/boot/dts/imx53.dtsi

@@ -364,6 +364,22 @@ MX53_PAD_CSI0_DAT4__IPU_CSI0_D_4	0x1d5
 							MX53_PAD_CSI0_PIXCLK__IPU_CSI0_PIXCLK   0x1d5
 						>;
 					};
+
+					pinctrl_csi_2: csigrp-2 {
+						fsl,pins = <
+							MX53_PAD_CSI0_VSYNC__IPU_CSI0_VSYNC	0x1d5
+							MX53_PAD_CSI0_MCLK__IPU_CSI0_HSYNC	0x1d5
+							MX53_PAD_CSI0_PIXCLK__IPU_CSI0_PIXCLK	0x1d5
+							MX53_PAD_CSI0_DAT19__IPU_CSI0_D_19	0x1d5
+							MX53_PAD_CSI0_DAT18__IPU_CSI0_D_18	0x1d5
+							MX53_PAD_CSI0_DAT17__IPU_CSI0_D_17	0x1d5
+							MX53_PAD_CSI0_DAT16__IPU_CSI0_D_16	0x1d5
+							MX53_PAD_CSI0_DAT15__IPU_CSI0_D_15	0x1d5
+							MX53_PAD_CSI0_DAT14__IPU_CSI0_D_14	0x1d5
+							MX53_PAD_CSI0_DAT13__IPU_CSI0_D_13	0x1d5
+							MX53_PAD_CSI0_DAT12__IPU_CSI0_D_12	0x1d5
+						>;
+					};
 				};
 
 				cspi {