The proper name for the property, which assign given device to IOMMU is
'iommus', not 'iommu'. Fix incorrect name and let all GScaler devices
to be properly handled when IOMMU support is enabled.
Reported-by: NAndrzej Hajda <a.hajda@samsung.com>
Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Fixes: 6cbfdd73 ("ARM: dts: add sysmmu nodes for exynos5250")
Cc: <stable@vger.kernel.org> # v4.8+
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>