[Patch, AVR]: AVR backend cleanup: use elfos.h

[Denis Chertykov]

2011/6/27 Georg-Johann Lay <avr@gjlay.de>:
> or
>
> [ ] Remove the undefs so that we have .ident.
>    There's nothing terrific about it, it just adds
>    some text to .comment section.  I guess it's missing
>    because noone ever added it.

This one.

Denis.