Updates to Release Notes

ANJ: Ready for 2.15 release

Remove references to SBS/GreenSpring

Fix XY9660 devWriteProbe accesses from MVME6100

Fix a problem with flushing the last write cycle inside the ISR.

Added Acromag AVME-9668 support, which is like a 9660 but can switch …

…the IP

slot clocks to 32MHz; we do this automatically if both the board and the module
indicate they can support it.

Also switched driver error messages from Xycom to Acromag since Xycom seem to
have stopped development, unlike Acromag.

Release notes for V2-10.

Added RTEMS note.

Minor changes, include a TVME200 carrier.

Oops, CLOCAL means NO h/w handshaking...