ENGR00320692-1 ARM: dts: imx6sl: fix "csi_id is missing or invalid" issue

csi_id property is missing in dts file for imx6sl-evk board, which
causes the following kernel dump when insert the csi_v4l2_capture module.
This patch fixed it.

csi_v4l2 csi_v4l2_cap.22: csi_id missing or invalid
Unable to handle kernel NULL pointer dereference at virtual address 00000034
pgd = a8774000
[00000034] *pgd=a957f831, *pte=00000000, *ppte=00000000
Internal error: Oops: 817 [wandboard-org#1] PREEMPT SMP ARM
Modules linked in: csi_v4l2_capture(+) fsl_csi ov5642_camera ov5640_camera evbug
CPU: 0 PID: 829 Comm: modprobe Not tainted 3.10.31-1.1.0_beta+g3c16fd0 wandboard-org#1
task: a881ef00 ti: a892c000 task.ti: a892c000
PC is at csi_v4l2_probe+0x2a0/0x35c [csi_v4l2_capture]
LR is at csi_v4l2_probe+0x290/0x35c [csi_v4l2_capture]

Signed-off-by: Robby Cai <r63905@freescale.com>
(cherry picked from commit d0173b8)

Author: Robby Cai

arch/arm/boot/dts/imx6sl-evk-common.dtsi

@@ -78,6 +78,7 @@
 
 	csi_v4l2_cap {
 		compatible = "fsl,imx6sl-csi-v4l2";
+		csi_id = <0>;
 		status = "disabled";
 	};