fix(module:pagination): fix pagination nzTotal 0 bug

[vthinkxie]

close #3648

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/CONTRIBUTING.md#commit
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

[ ] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[ ] Documentation content changes
[ ] Application (the showcase website) / infrastructure changes
[ ] Other... Please describe:

What is the current behavior?

Issue Number: N/A

What is the new behavior?

Does this PR introduce a breaking change?

[ ] Yes
[x] No

Other information

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[codecov]

Codecov Report

Merging #3651 into master will decrease coverage by <.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #3651      +/-   ##
==========================================
- Coverage   95.43%   95.42%   -0.01%     
==========================================
  Files         686      686              
  Lines       14091    14091              
  Branches     1877     1877              
==========================================
- Hits        13448    13447       -1     
  Misses        229      229              
- Partials      414      415       +1

Impacted Files	Coverage Δ
components/pagination/nz-pagination.component.ts	98.95% <100%> (ø)	⬆️
components/time-picker/time-holder.ts	96.57% <0%> (-0.69%)	⬇️

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Deploy preview for ng-zorro-master ready!

Built with commit b85537c

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