ARM: dts: exynos4210-universal: add exynos/fimd node

The patch adds fimd node with display timings for exynos4210-universal device.
It also makes LCD regulators always on. This allow to re-use panel initialized
by boot loader.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>