drm/tegra: dsi: Fix missing pm_runtime_disable() in the error handling path of tegra_dsi_probe()

If an error occurs after calling pm_runtime_enable(), pm_runtime_disable()
should be called as already done in the remove function.

Fixes: ef8187d75265 ("drm/tegra: dsi: Implement runtime PM")
Signed-off-by: Christophe JAILLET <[e-mail]>
Signed-off-by: Thierry Reding <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/ee4a15c9cd[e-mail]

drivers/gpu/drm/tegra/dsi.c

···
 	return 0;
 
 unregister:
+	pm_runtime_disable(&pdev->dev);
 	mipi_dsi_host_unregister(&dsi->host);
 mipi_free:
 	tegra_mipi_free(dsi->mipi);