fix a typo in csl_rotated_fcos_head

[JinYuannn]

fix a typo in csl_rotated_fcos_head, "seprate_angle" should be "separate_angle".

[codecov[bot]]

Codecov Report

Merging #362 (22f1632) into dev (22bbb49) will not change coverage. The diff coverage is 0.00%.

@@           Coverage Diff           @@
##              dev     #362   +/-   ##
=======================================
  Coverage   30.86%   30.86%           
=======================================
  Files         119      119           
  Lines        7934     7934           
  Branches     1220     1220           
=======================================
  Hits         2449     2449           
  Misses       5384     5384           
  Partials      101      101           

Flag	Coverage Δ
unittests	30.84% <0.00%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
mmrotate/core/post_processing/bbox_nms_rotated.py	6.15% <0.00%> (ø)
...rotate/models/dense_heads/csl_rotated_fcos_head.py	13.88% <0.00%> (ø)
mmrotate/models/dense_heads/rotated_fcos_head.py	10.04% <0.00%> (ø)

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[zytx121]

Please pull down the latest dev branch by git pull upstream dev and push again.

[yangxue0827]

This branch has conflicts that must be resolved @JinYuannn