drm/exynos: fixed connector flag with hpd and interlace scan for hdmi

hdmi display in exynos supports hotplug event and interlace scan mode
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>

drivers/gpu/drm/exynos/exynos_drm_connector.c

@@ -254,6 +254,8 @@ struct drm_connector *exynos_drm_connector_create(struct drm_device *dev,
 	switch (manager->display->type) {
 	case EXYNOS_DISPLAY_TYPE_HDMI:
 		type = DRM_MODE_CONNECTOR_HDMIA;
+		connector->interlace_allowed = true;
+		connector->polled = DRM_CONNECTOR_POLL_HPD;
 		break;
 	default:
 		type = DRM_MODE_CONNECTOR_Unknown;