Merge tag 'drm-amdkfd-next-2018-05-28' of git://people.freedesktop.org/~gabbayo/linux into drm-next

- Build amdkfd's related files inside amdgpu only if amdkfd is built
- Fix compile warning
- Print info message in case ASIC is not supported by amdkfd

Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180528110435.GA17960@odedg-x270