Add validation for a few image_desc_t members.

[aarongreig]

Also removes these checks from the cuda and hip adapters since they should be caught by the validation layer now.

The new validation rules bring image_desc_t in line with the CL struct it was derived from. We already had CTS coverage for them.

LLVM testing intel/llvm#12267

[aarongreig]

I want to remove the "must be zero" members from the struct, still looking into their original purpose so I can write up a proper issue about it.

[fabiomestre]

I have updated the target branch of this PR from the adapters branch to the main branch.
Development in UR is moving back to main. The adapters branch will soon be deleted.

[codecov-commenter]

Codecov Report

Attention: 8 lines in your changes are missing coverage. Please review.

Comparison is base (8d1486a) 15.74% compared to head (42c60fa) 15.73%.
Report is 18 commits behind head on main.

Files	Patch %	Lines
source/loader/layers/validation/ur_valddi.cpp	0.00%	8 Missing ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1118      +/-   ##
==========================================
- Coverage   15.74%   15.73%   -0.01%     
==========================================
  Files         223      223              
  Lines       31466    31483      +17     
  Branches     3556     3561       +5     
==========================================
  Hits         4953     4953              
- Misses      26462    26480      +18     
+ Partials       51       50       -1     

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[aarongreig]

@oneapi-src/unified-runtime-cuda-write @oneapi-src/unified-runtime-hip-write the changes here are trivial but I don't really want to establish a precedent for merging stuff without code owner approval

[aarongreig]

absorbed into #1212