'+S' is unnecessary because boards of rmobile do not use SPL.
This removes from armadillo-800eva and kzm9g.
Signed-off-by: NNobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: NNobuhiro Iwamatsu <iwamatsu@nigauri.org>