[Skiboot] [PATCH] travis: Enable ppc64le builds

[Stewart Smith]

Stewart Smith <stewart at linux.ibm.com> writes:
> From: Stewart Smith <stewart at linux.vnet.ibm.com>
>
> At least on the IBM Travis Enterprise instance, we can now do
> ppc64le builds!
>
> We can only build a subset of our matrix due to availability of
> ppc64le distros. The Dockerfiles need some tweaking to only
> attempt to install (x86_64 only) Mambo binaries, as well as the
> build scripts.
>
> Signed-off-by: Stewart Smith <stewart at linux.vnet.ibm.com>

Merged as of e101e85c9ff65e82f7ede4d5541d921b4a3ed923.

For those playing along at home, currently this only works on the
internal Travis instance. Hopefully at some point "soon" it'll be on the
public one. Wonderful magic elves inside IBM got it going internally
with working with the Travis team and they're piloting it internally to
iron out any issues.

-- 
Stewart Smith
OPAL Architect, IBM.