This set of ifdefs is used in a number of places. Move its definition
somewhere common so it doesn't have to be repeated.
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Acked-by: NSimon Glass <sjg@chromium.org>
Acked-by: NTom Rini <trini@ti.com>
Signed-off-by: NTom Warren <twarren@nvidia.com>