drm/edid: Allow to add checksum quirks

There are devices out there that have a broken checksum but otherwise
report correct edid. Allow to add quirks for those as well.

Signed-off-by: Guido Günther <guido.gunther@puri.sm>
2 jobs for edid in 77 minutes and 5 seconds
Name Stage Failure
build:aarch64 Build
  man-db patch perl perl-modules-5.28 po-debconf rsync xz-utils
The following packages will be upgraded:
E: You don't have enough free space in /var/cache/apt/archives/.
E: Failed to process build dependencies
1 upgraded, 91 newly installed, 0 to remove and 20 not upgraded.
Need to get 98.1 MB of archives.
After this operation, 384 MB of additional disk space will be used.
ERROR: Job failed: exit code 1