drm/msm/hdmi: Switch to DRM_CONNECTOR_POLL_HPD

We support HPD interrupts on all platofrms, let's start using it.

Signed-off-by: Archit Taneja <architt@codeaurora.org>

drivers/gpu/drm/msm/hdmi/hdmi_connector.c

@@ -472,8 +472,7 @@ struct drm_connector *msm_hdmi_connector_init(struct hdmi *hdmi)
 			DRM_MODE_CONNECTOR_HDMIA);
 	drm_connector_helper_add(connector, &msm_hdmi_connector_helper_funcs);
 
-	connector->polled = DRM_CONNECTOR_POLL_CONNECT |
-			DRM_CONNECTOR_POLL_DISCONNECT;
+	connector->polled = DRM_CONNECTOR_POLL_HPD;
 
 	connector->interlace_allowed = 0;
 	connector->doublescan_allowed = 0;