[Fix] fix spelling errors in MAE config

[soonera]

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Motivation

_base_ = 'mae_vit-base-16_8xb512-coslr-400e_in1k.py' is missing a letter p.

Modification

Please briefly describe what modification is made in this PR.

BC-breaking (Optional)

Does the modification introduce changes that break the backward compatibility of the downstream repositories?
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)

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Checklist

Before PR:

• Pre-commit or other linting tools are used to fix the potential lint issues.
• Bug fixes are fully covered by unit tests, the case that causes the bug should be added in the unit tests.
• The modification is covered by complete unit tests. If not, please add more unit test to ensure the correctness.
• The documentation has been modified accordingly, like docstring or example tutorials.

After PR:

• If the modification has potential influence on downstream or other related projects, this PR should be tested with those projects, like MMDet or MMSeg.
• CLA has been signed and all committers have signed the CLA in this PR.

[codecov]

Codecov Report

Merging #307 (15954c9) into v0.10.0 (927f2ee) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           v0.10.0     #307   +/-   ##
========================================
  Coverage    72.46%   72.46%           
========================================
  Files          120      120           
  Lines         4703     4703           
  Branches       757      757           
========================================
  Hits          3408     3408           
  Misses        1137     1137           
  Partials       158      158           

Flag	Coverage Δ
unittests	72.46% <ø> (ø)

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