Add optional ram-start and ram-size to target memory

[brondani]

Fixes

• memory: node should also have ram-start and ram-size attributes #2467

Changes

• Add optional ram-start and ram-size properties to target memory entries.
• Parse custom RAM settings and include them in generated .cbuild-run.yml programming data.
• Fall back to the default RAM start or size when the corresponding custom value is omitted.
• Preserve validation when neither custom nor default RAM settings are available.
• Add unit and run/debug reference coverage for custom RAM settings and missing defaults.

Checklist

• 🤖 This change is covered by unit tests (if applicable).
• 🤹 Manual testing has been performed (if necessary).
• 🛡️ Security impacts have been considered (if relevant).
• 📖 Documentation updates are complete (if required).
• 🧠 Third-party dependencies and TPIP updated (if required).

[github-actions]

Test Results

  2 files   14 suites   14m 56s ⏱️
477 tests 477 ✅ 0 💤 0 ❌
954 runs  954 ✅ 0 💤 0 ❌

Results for commit 7e42d8d.

[codecov]

Codecov Report

❌ Patch coverage is 57.14286% with 6 lines in your changes missing coverage. Please review.
✅ Project coverage is 65.39%. Comparing base (c3edeca) to head (7e42d8d).

Files with missing lines	Patch %	Lines
tools/projmgr/src/ProjMgrRunDebug.cpp	50.00%	1 Missing and 5 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2544      +/-   ##
==========================================
+ Coverage   65.37%   65.39%   +0.01%     
==========================================
  Files         147      147              
  Lines       26805    26813       +8     
  Branches    16242    16248       +6     
==========================================
+ Hits        17525    17534       +9     
+ Misses       7075     7072       -3     
- Partials     2205     2207       +2     

Flag	Coverage Δ
projmgr-cov	88.01% <57.14%> (+0.02%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
tools/projmgr/include/ProjMgrParser.h	100.00% <ø> (ø)
tools/projmgr/include/ProjMgrRunDebug.h	100.00% <ø> (ø)
tools/projmgr/src/ProjMgrYamlParser.cpp	84.97% <100.00%> (+0.03%)	⬆️
tools/projmgr/src/ProjMgrRunDebug.cpp	88.14% <50.00%> (+0.34%)	⬆️

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