[MINIOS] Exports a function to have all Xen ports unbound.
[MINIOS] Exports a function to have all Xen ports unbound.

This is necessary when using mini-os as the foundation for a boot-loader.

Signed-off-by: Jacob Gorm Hansen <40f26e0c0217cced554de11ecb059a49e5f8b624@diku.dk>

rowhit/xen-minios,rowhit/xen-minios,rowhit/xen-minios