DRM_TEGRA not buildable as a module

[Josh Boyer]

Hi All,

The commit below seems to have made the Tegra DRM driver a bool option
instead of tristate:

commit dee8268f8fb218c9e9b604a40f7dbdd395e910f9
Author: Thierry Reding <treding at nvidia.com>
Date:   Wed Oct 9 10:32:49 2013 +0200

    drm/tegra: Move driver to DRM tree

    In order to make subsystem-wide changes easier, move the Tegra DRM
    driver back into the DRM tree.

    Signed-off-by: Thierry Reding <treding at nvidia.com>

That means you can't build the driver as a module.  Was this intended?
 The changelog doesn't mention anything about that and the existing
help text on the option seems to imply it should be buildable as a
module.

josh