Pass args to ShardedDataParallel

[SeanNaren]

What does this PR do?

Fixes #9467

Pass kwargs to wrapper, just like DDP does with DDP wrapper

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[codecov]

Codecov Report

Merging #9483 (906f970) into master (07e94b8) will increase coverage by 0%.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           master   #9483   +/-   ##
======================================
  Coverage      93%     93%           
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  Files         180     180           
  Lines       15066   15066           
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+ Hits        13986   13991    +5     
+ Misses       1080    1075    -5     

[ananthsub]

@SeanNaren should we explicitly check if reduce_buffer_size is part of the kwargs to avoid errors with it being configured twice?

[SeanNaren]

great point, will do a followup here!