If try to build for an ppc64 target openssl will fail to build since
the configure script didn't know how to handle a 'linux-powerpc64' target.
(From OE-Core rev: 9c98851951ba79a5e1a6a7daa2a3552dcf3adf86)
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>