drm_hwcomposer: use upstream DRM_MODE_{ROTATE, REFLECT} defines

The DRM_REFLECT_* and DRM_ROTATE_* defines were not upstream, but now
they are. Convert to using the upstream version which are defined as a
bit mask rather than a bit position.

Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Robert Foss <robert.foss@collabora.com>
1 file changed