Handle ipv6 boot parameters for POWER architecture.
This is implementation derived.
This follows the semantics defined in section 4.3.1 of
http://www.power.org/apps/org/workgroup/parch/download.php/2380/latest
(It is under the Members area of TSC - Platform Architecture committee).
[ Fixed merge conflicts in second/file.c and second/fs_of.c ]
Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com> Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>