drm/bridge: dw-hdmi: Fix return error path

If devm_request_threaded_irq() fails we should jump to 'err_iahb' label that
will disable the clocks that were previously enabled.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Thierry Reding <treding@nvidia.com>

drivers/gpu/drm/bridge/dw_hdmi.c

@@ -1649,7 +1649,7 @@ int dw_hdmi_bind(struct device *dev, struct device *master,
 					dw_hdmi_irq, IRQF_SHARED,
 					dev_name(dev), hdmi);
 	if (ret)
-		return ret;
+		goto err_iahb;
 
 	/*
 	 * To prevent overflows in HDMI_IH_FC_STAT2, set the clk regenerator