Attempt to fix for Android's sys.platform changes

[A5rocks]

Fixes #3357

Since we don't have CI for this, @kuzeyron could you check this fixes anything?

(CI for this case has been tracked in #2885 for a while)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00000%. Comparing base (18fd1d4) to head (30679a5).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@                 Coverage Diff                  @@
##                main        #3359         +/-   ##
====================================================
+ Coverage   99.87621%   100.00000%   +0.12378%     
====================================================
  Files            125          125                 
  Lines          19388        19388                 
  Branches        1319         1319                 
====================================================
+ Hits           19364        19388         +24     
+ Misses            23            0         -23     
+ Partials           1            0          -1     

Files with missing lines	Coverage Δ
src/trio/_core/__init__.py	100.00000% <100.00000%> (ø)
src/trio/_core/_run.py	100.00000% <100.00000%> (ø)

... and 2 files with indirect coverage changes

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[kuzeyron]

Works on my end!

[kuzeyron]

Thanks mate!