drm/tegra: hub: Use state directly

Using drm_atomic_get_private_obj_state() after state has been swapped
will return old state.

Fixes: 0281c414 ("drm/tegra: hub: Use private object for global state")
Signed-off-by: NStefan Schake <stschake@gmail.com>
Signed-off-by: NThierry Reding <treding@nvidia.com>

drivers/gpu/drm/tegra/hub.c

@@ -687,7 +687,7 @@ void tegra_display_hub_atomic_commit(struct drm_device *drm,
 	struct device *dev = hub->client.dev;
 	int err;
 
-	hub_state = tegra_display_hub_get_state(hub, state);
+	hub_state = to_tegra_display_hub_state(hub->base.state);
 
 	if (hub_state->clk) {
 		err = clk_set_rate(hub_state->clk, hub_state->rate);