drm/tegra: Do not export tegra_bo_ops

These buffer object operations are never used outside of the GEM
implementation so there is no use in exporting them.
Signed-off-by: Thierry Reding <treding@nvidia.com>

drivers/gpu/drm/tegra/gem.c

@@ -83,7 +83,7 @@ static struct host1x_bo *tegra_bo_get(struct host1x_bo *bo)
 	return bo;
 }
 
-const struct host1x_bo_ops tegra_bo_ops = {
+static const struct host1x_bo_ops tegra_bo_ops = {
 	.get = tegra_bo_get,
 	.put = tegra_bo_put,
 	.pin = tegra_bo_pin,

drivers/gpu/drm/tegra/gem.h

@@ -40,8 +40,6 @@ static inline struct tegra_bo *to_tegra_bo(struct drm_gem_object *gem)
 	return container_of(gem, struct tegra_bo, gem);
 }
 
-extern const struct host1x_bo_ops tegra_bo_ops;
-
 struct tegra_bo *tegra_bo_create(struct drm_device *drm, unsigned int size,
 				 unsigned long flags);
 struct tegra_bo *tegra_bo_create_with_handle(struct drm_file *file,