Revert "PR 1019: removed unnecessary v4l header from image_interface.h"
Revert "PR 1019: removed unnecessary v4l header from image_interface.h"

This reverts commit bc5472f879bdf1f44c746692b2888e8c92684528, reversing
changes made to 5d0dabb007629cc785ae59e3034bb9fb7c2f7ea9.

IntelRealSense/realsense_sdk,IntelRealSense/realsense_sdk,IntelRealSense/realsense_sdk