compiler: prevent padding non inner-most dim

[mloubout]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 78.99%. Comparing base (c581d00) to head (15c889f).
⚠️ Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
devito/types/basic.py	0.00%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2855   +/-   ##
=======================================
  Coverage   78.98%   78.99%           
=======================================
  Files         248      248           
  Lines       50980    50982    +2     
  Branches     4411     4412    +1     
=======================================
+ Hits        40267    40271    +4     
+ Misses       9911     9909    -2     
  Partials      802      802           

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[FabioLuporini]

uncontroversial