These variables were wrong on big-endian machines and this recipe is now
handled in meta-oe (along with the siteinfo files).

(From OE-Core rev: 6129df9588c96ca710c585f5ed400ac551b61055)

Signed-off-by: Tom Rini <tom_rini@mentor.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>