SpWBoot bundle

This software provides a simple way to demonstrate one LEON processor development board booting another over SpaceWire RMAP. 
Documentation is available as application note http://gaisler.com/doc/antn/GRLIB-AN-0002.pdf

CHANGELOG:

v2.1
fix MUXCFG address in spwboot_rmap_GR740.h
fix clean target

v2.0
add examples directory
add support for GR740