i810/i830: use drm_core_ioremap instead of drm_ioremap

This makes the i810/i830 use the drm_core_ioremap functions.

Signed-off-by: Dave Airlie <airlied@linux.ie>

diff --cc drivers/char/drm/i810_dma.c
Simple merge

diff --cc drivers/char/drm/i810_drv.h
Simple merge

diff --cc drivers/char/drm/i830_dma.c
Simple merge

diff --cc drivers/char/drm/i830_drv.h
Simple merge