[2/21] Add support for AIX 6

[Nick Clifton]

Hi Richard,

> bfd/
> 	* config.bfd: Treat AIX 6+ in the same way as AIX 5.
> 	* configure.in: Likewise.
> 	* configure: Regenerate.
> 
> binutils/
> 	* configure.tgt: Extend AIX 5 behavior to AIX 6 and above.
> 	* configure.in: Likewise.
> 	* configure: Regenerate.
> 
> gas/
> 	* configure.tgt: Extend AIX 5 behavior to AIX 6 and above.
> 	* configure.in: Likewise.
> 	* configure: Regenerate.
> 
> ld/
> 	* configure.tgt: Extend AIX 5 behavior to AIX 6 and above.

Approved - please apply.

Cheers
   Nick