drm/vkms: Use drmm_crtc_init_with_planes()

Use drmm_crtc_init_with_planes() instead of drm_crtc_init_with_planes()
to get rid of the explicit destroy hook in struct drm_crtc_funcs.

Signed-off-by: Maíra Canal <mcanal@igalia.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20230116205800.1266227-1-mcanal@igalia.com