[kexec-lite PATCH V2] trampoline: Reset primary cpu endian to big-endian

[Anton Blanchard]

Hi Scott,

> Is kexec-lite meant to be specific to book3s-64? 

It was originally built to test book3s-64 kexec. Likely some other
issues need fixing for other ppc sub arches, but it is nice to
have a very simple kexec.

Anton