ARM: S5PV210: Enable USB HSOTG gadget build

Add the necessary definitions and mapping information to enable the
s3c-hsotg gadget to build.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>