Exynos4 like other Cortex-A9 SoC's has a Snoop Control Unit(SCU)
and its SFR are used during SMP boot and S2R. Add SCU node to the device tree.
Signed-off-by: NPankaj Dubey <pankaj.dubey@samsung.com>
Reviewed-by: NAlim Akhtar <alim.akhtar@samsung.com>
Tested-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>