After some research I found that mount options for devicekit-disks were hardcoded into it. So I made a patch to fix it. It conflicts with one of the patches from devicekit-disks source package, so you have to add it in "patches" directory and mention it in the end of "series" file.
After some research I found that mount options for devicekit-disks were hardcoded into it. So I made a patch to fix it. It conflicts with one of the patches from devicekit-disks source package, so you have to add it in "patches" directory and mention it in the end of "series" file.