exit: change _atexit_call into __cxa_finalize

[badochov]

JIRA: RTOS-900

Description

Motivation and Context

__cxa_finalize support is needed for shared libs support

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Chore (refactoring, style fixes, git/CI config, submodule management, no code logic changes)

How Has This Been Tested?

• Already covered by automatic testing.
• New test added: (add PR link here).
• Tested by hand on:ia32

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing linter checks and tests passed.
• My changes generate no new compilation warnings for any of the targets.

Special treatment

• This PR needs additional PRs to work (list the PRs, preferably in merge-order).
• I will merge this PR by myself when appropriate.

[github-actions]

Unit Test Results

7 725 tests  +25   7 010 ✅ +25   39m 23s ⏱️ + 1m 40s
  445 suites + 9     715 💤 ± 0 
    1 files   ± 0       0 ❌ ± 0 

Results for commit 38b7653. ± Comparison against base commit 5073395.

♻️ This comment has been updated with latest results.