ARM: dts: Update sdhci nodes for current bindings for exynos4210-origen

This patch modifies sdhci nodes present in Origen device tree source
to use current generic mmc bindings.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>