Log Message:
emulators/hercules4sdl: update to 4.4.1.

This release is a *HOT FIX* that corrects a 20 yr. old bug recently
discovered  in Hercules's compressed CKD ("CCKD") dasd emulation logic
negatively impacting certain guests. Refer to the "Release Notes" web
page for important information:

   https://sdl-hercules-390.github.io/html/hercrnot.html#4.4.1

For a list of changes included in this release, refer to the "Summary of
changes" further below or the "What's New" web page at:

   https://sdl-hercules-390.github.io/html/hercnew.html

All BUG REPORTS should be reported via the SDL-Hercules-390 GitHub
"Issues" web page at:

   https://github.com/sdl-hercules-390/hyperion/issues

Questions or concerns should be directed to the main hercules-390 groups.io
group at https://hercules-390.groups.io/g/group

Summary of Changes:
-------------------

  . Implement new Version string format
  . Return fullword #of cylinders in RDC bytes 60-63 (#456)
  . Also show real address for virtual address during instruction tracing
  . Fix possible Hercules crash after resume from suspend (#458)
  . Improved B220 (SERVC) instruction validation (#460)
  . Fix 20 yr. old CCKD compressed dasd bug causing Locate Record to fail (#464)

Please refer to the "Release Notes" web page for important information
regarding this release:

   https://sdl-hercules-390.github.io/html/hercrnot.html#4.4.1