linux-imx

drm/tilcdc: Use tilcdc_crtc_shutdown() in tilcdc_crtc_destroy()

Use tilcdc_crtc_shutdown() instead of tilcdc_crtc_disable() in
tilcdc_crtc_destroy() and remove the modeset locking.

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