[rfa:doc] Add gpl to gdb.texinfo, fdl to gdbin.texinfo

[Andrew Cagney]

> On Sun, 24 Feb 2002, Andrew Cagney wrote:
> 
> 
>> The attached adds an appendix containing the GPL to GDB.texinfo.  It 
>> also adds an appendix containing FDL to GDBINT.texinfo.  Hopefully this 
>> closes off another potential issue luring from the 5.1.0.x series.
>> 
>> Ok?
> 
> 
> Yes, thanks.

Committed.

ta.