This patch adds PPMU dt node for Exynos3250 based Rinato and Monk
boards.  The PPMU node is used to get the utilization of DMC0/DMC1/
LEFTBUS/RIGHTBUS Block.
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>
Acked-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NKukjin Kim <kgene@kernel.org>