Fix #4547: Change hashret of DoIP

[polybassa]

Allow broadcast addressing in DoIP

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.62%. Comparing base (8e08cbf) to head (25a6517).
Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4586      +/-   ##
==========================================
- Coverage   81.62%   81.62%   -0.01%     
==========================================
  Files         358      358              
  Lines       85652    85650       -2     
==========================================
- Hits        69915    69910       -5     
- Misses      15737    15740       +3     

Files with missing lines	Coverage Δ
scapy/contrib/automotive/doip.py	90.60% <100.00%> (+0.53%)	⬆️

... and 10 files with indirect coverage changes

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