[AIMIGRAPHX-408] Update intermediate ops to support dynamic shapes

[shivadbhavsar]

Motivation

Enable running fully dynamic graphs with gemm and pointwise ops

Technical Details

Update contiguous op to work with dynamic shapes. Required for running mlir gemms

Changelog Category

Add a CHANGELOG.md entry for any option other than Not Applicable

• • Added: New functionality.
• • Changed: Changes to existing functionality.
• • Removed: Functionality or support that has been removed. (Compared to a previous release)
• • Optimized: Component performance that has been optimized or improved.
• • Resolved Issues: Known issues from a previous version that have been resolved.
• • Not Applicable: This PR is not to be included in the changelog.

Should go in after #4549

[codecov]

Codecov Report

❌ Patch coverage is 50.00000% with 1 line in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
src/reduce_dims.cpp	50.00%	1 Missing ⚠️

Additional details and impacted files

@@               Coverage Diff                @@
##           dyn_code_obj    #4581      +/-   ##
================================================
- Coverage         92.23%   92.23%   -0.00%     
================================================
  Files               567      567              
  Lines             27498    27500       +2     
================================================
+ Hits              25362    25363       +1     
- Misses             2136     2137       +1     

Files with missing lines	Coverage Δ
src/reduce_dims.cpp	98.70% <50.00%> (-1.30%)	⬇️

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