BUG: pd.crosstab not working when margin and normalize are set together
- [ ] closes #27500 
- [ ] tests added / passed
- [ ] passes `black pandas`
- [ ] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`
- [ ] whatsnew entry

ok this looks good, can you merge master and fix the conflic. ping on green. Thanks for your follow-up review @jreback !! I merged the master and resolved the conflict. Yeah, this time it passes all checks. @jreback 