[PATCH v2] sim: add --map-info option

[Joel Brobecker]

> > One last request: Can you send a patch adding a note in the gdb/NEWS file?
> 
> to mention the new sim option --map-info ?  i didnt think new sim
> options were announced in the gdb/NEWS file as i didnt see any
> examples of this ...

Yes. I think it's NEWS-worthy, regardless of what we have (or not)
been doing in the past.

Also, since there does not seem to be any sim documentation in the GDB
Manual, the only way I could think of to give this new option a tiny bit
of exposure is the NEWS file. 

-- 
Joel