[Feature] Porting mmcv for hip

[XuanBaby]

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Motivation

porting mmcv for rocm; need porting mmcv source code and hipidy-python

Modification

add ROCM module codes at setup.py

BC-breaking (Optional)

Does the modification introduce changes that break the back-compatibility of the downstream repos?
If so, please describe how it breaks the compatibility and how the downstream projects should modify their code to keep compatibility with this PR.

Use cases (Optional)

If this PR introduces a new feature, it is better to list some use cases here, and update the documentation.

Checklist

1. Pre-commit or other linting tools are used to fix the potential lint issues.
2. The modification is covered by complete unit tests. If not, please add more unit test to ensure the correctness.
3. If the modification has potential influence on downstream projects, this PR should be tested with downstream projects, like MMDet or MMCls.
4. The documentation has been modified accordingly, like docstring or example tutorials.

[codecov]

Codecov Report

Merging #1022 (e82c5e0) into master (db580dd) will decrease coverage by 0.01%.
The diff coverage is 55.55%.

@@            Coverage Diff             @@
##           master    #1022      +/-   ##
==========================================
- Coverage   67.99%   67.97%   -0.02%     
==========================================
  Files         159      159              
  Lines       10426    10434       +8     
  Branches     1897     1899       +2     
==========================================
+ Hits         7089     7093       +4     
- Misses       2968     2970       +2     
- Partials      369      371       +2     

Flag	Coverage Δ
unittests	67.97% <55.55%> (-0.02%)	⬇️

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Impacted Files	Coverage Δ
mmcv/utils/parrots_wrapper.py	59.37% <55.55%> (-1.34%)	⬇️

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[ZwwWayne]

Actually, this PR LGTM. Do we have resources to test this PR on ARM machines?

[zhouzaida]

Actually, this PR LGTM. Do we have resources to test this PR on ARM machines?

yet, I am testing