Add CONFORMING_SM_SUPPORTED parameter

[jordancarlin]

Discussed during today's UDB SIG meeting.

Since Sm is always a required extension for complete configs in UDB, this parameter is needed for ACT4 so that it knows whether the machine mode CSRs exist.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 72.24%. Comparing base (2ddd8d1) to head (9bb5561).
⚠️ Report is 10 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1808   +/-   ##
=======================================
  Coverage   72.24%   72.24%           
=======================================
  Files          52       52           
  Lines       27671    27671           
  Branches     6009     6009           
=======================================
  Hits        19992    19992           
  Misses       7679     7679           

Flag	Coverage Δ
idlc	76.18% <ø> (ø)
udb	66.26% <ø> (ø)

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

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[dhower-qc]

To truly implement this, should every M-mode CSR be defined by CONFORIMING_SM_SUPPORTED == true?