[PATCH/RFA] Define various OS/ABI note types

[Nick Clifton]

Hi Jason,

> 	* common.h (NT_GNU_ABI_TAG): Define.
> 	(GNU_ABI_TAG_LINUX): Define.
> 	(GNU_ABI_TAG_HURD): Define.
> 	(GNU_ABI_TAG_SOLARIS): Define.
> 	(NT_NETBSD_IDENT): Define.
> 	(NT_FREEBSD_ABI_TAG): Define.

Approved - please apply.

Cheers
        Nick