Problem: insufficient invalid value check in eth transaction

[mmsqe]

Closes: #XXX

Description

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For contributor use:

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• Code follows the module structure standards.
• Wrote unit and integration tests
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For admin use:

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 61.60%. Comparing base (e5b222f) to head (cbfcc16).

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #497      +/-   ##
===========================================
+ Coverage    61.59%   61.60%   +0.01%     
===========================================
  Files          128      128              
  Lines         9477     9480       +3     
===========================================
+ Hits          5837     5840       +3     
  Misses        3100     3100              
  Partials       540      540              

Files	Coverage Δ
app/ante/eth.go	77.68% <100.00%> (+0.56%)	⬆️

[yihuang]

Normally, it can't be negative because it's decoded from rlp, but ok.