ARM: dts: add jpeg-codec node for exynos4 and exynos4x12

This patch adds nodes for hardware JPEG codec found in exynos4210
and exynos4x12 SoCs.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>