Description: udf: Avoid using stale lengthOfImpUse 
References:
 https://bugzilla.redhat.com/show_bug.cgi?id=2086412
Notes:
 carnil> Introduced in 5.15-rc1 with 979a6e28dd96 ("udf: Get rid of 0-
 carnil> length arrays in struct fileIdentDesc")
Bugs:
upstream: released (5.18-rc7) [c1ad35dd0548ce947d97aaf92f7f2f9a202951cf]
5.10-upstream-stable: N/A "Vulnerable code not present"
4.19-upstream-stable: N/A "Vulnerable code not present"
4.9-upstream-stable: N/A "Vulnerable code not present"
sid: released (5.17.11-1)
5.10-bullseye-security: N/A "Vulnerable code not present"
4.19-buster-security: N/A "Vulnerable code not present"
4.9-stretch-security: N/A "Vulnerable code not present"