A recent bug in swupd-client prevents users from updating due to a
maximum contensize check that was a couple orders of magnitude off.
These clients are broken and cannot update if they have installed
bundles that violate this maximum.
To allow these broken clients to update temporarily set the maximum
contentsize to the bogus contentsize expected by the client.
Remove this check once a format bump has occurred.
Signed-off-by: Matthew Johnson <matthew.johnson@intel.com>