linux-phytec-fsl

drm/tilcdc: Set DRIVER_ATOMIC and use atomic crtc helpers

Set DRIVER_ATOMIC and use atomic helpers and rename commit and prepare
crtc helpers to enable and disable. This makes the final jump to mode
setting, but there is lot of obsolete code to clean up.

Signed-off-by: Jyri Sarha <jsarha@ti.com>