Erik's MultiBoot changes work for pc386

[ccaudle at pdq.net (Chris Caudle)]

>Could you e-mail me the changes ?
>I'd like to try it myself. I have not tried anything with Grub, because it
>just did not work before.

Erik's original message is on the archive at:
http://www.rtems.com/rtems/freesupport/rtemslistArchive/1999/july/msg00144.h
tml

Just four lines in ldsegs.s, and two or three lines in linkcmds in the
startup directory.

Any ideas on the need to objcopy the output and explicitly specify ELF?  My
guess is that one of the master make files which gets included in pc386 bsp
strips something it shouldn't, but I haven't tracked it down yet.

- Chris