Initial patches for proper ARM support for nodejs

[Joerg Sonnenberger <joerg%britannica.bec.de@localhost>]

Hi all,
as I have run out of time and interest to finish this up, the initial
change set to get the last version of nodejs working on NetBSD ARM with
eABI can be found here:

http://www.netbsd.org/~joerg/nodejs.tar.gz

Some parts certainly need to be cleaned up to not break Linux and there
are still issues with the VM hanging. But it might give people pointers
towards what to do.

Joerg