[RFA] gdb/NEWS: Move entries about MI v3 and multi-loc breakpoints after GDB 8.3

[Joel Brobecker]

> > gdb/ChangeLog:
> > 
> > 	* NEWS: Move entries about default MI version now being
> >         version 3, and about the GDB/MI fix for multi-location
> >         breakpoints to the "since GDB 8.3" section.
> > 
> > Simon, do you confirm that this is correct?
> 
> Oh yeah you are right, sorry about that.

Thanks for confirming, Simon. Patch pushed to master!

-- 
Joel