Disable warning about LOAD segments having RWX permission to be default on OS4.

[kas1e]

Currently, if we just use "ld" for linking, we do have such a warning:

ppc-amigaos-ld: warning: test_new has a LOAD segment with RWX permissions

This is something introduced in the latest binutils (since 2.39), and can be disabled by just --no-warn-rwx-segments.

So to not confuse os4 developers and newbies, better to make such disable be a default for us.

[kas1e]

Turns out, that this is warning produced by usage of -N switch of LD, which mean exactly that:

-N
--omagic
Set the text and data sections to be readable and writable.

So linker warn us of course about, which is correct thing. Without -N usage everything fine.

So, no issue with new binutils then.