linux-phytec-ti

drm/exynos: fix types for compilation on 64bit architectures

This patch fixes compilation warnings (on 64bit architectures) and bugs
related to casting pointers through 32bit integers.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>