Add device tree nodes for DWC3 controller present on
Exynos 5420 SoC, to enable support for USB 3.0.
Signed-off-by: NVivek Gautam <gautam.vivek@samsung.com>
Reviewed-by: NTomasz Figa <t.figa@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>