Did you give it a try?
It is not the same actually, the difference is that this time you are not going to add the TEGRA_CAMERA_CID_GROUP_HOLD to the static const u32 ctrl_cid_list[] explicitly, but you are implementing the function and adding it to the tegracam_ctrl_ops ov5693_ctrl_ops which seems to be what is needed based on this error: Missing TEGRA_CAMERA_CID_GROUP_HOLD implementation