drm/exynos: disable unused windows on apply

The patch disables non-enabled HW windows on applying
configuration, it will allow to clear windows enabled
by bootloader.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

drivers/gpu/drm/exynos/exynos_drm_fimd.c

@@ -741,6 +741,8 @@ static void fimd_apply(struct exynos_drm_manager *mgr)
 		win_data = &ctx->win_data[i];
 		if (win_data->enabled)
 			fimd_win_commit(mgr, i);
+		else
+			fimd_win_disable(mgr, i);
 	}
 
 	fimd_commit(mgr);