drm/ingenic: Hardcode panel type to DPI

The ingenic driver supports DPI panels only at the moment, so hardcode
their type to DPI instead of Unknown.

Signed-off-by: Laurent Pinchart <[e-mail]>
Signed-off-by: Paul Cercueil <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]
# *** extracted tags ***
Reviewed-by: Sam Ravnborg <[e-mail]>

drivers/gpu/drm/ingenic/ingenic-drm.c

···
 		return ret;
 	}
 
-	if (panel) {
+	if (panel)
 		bridge = devm_drm_panel_bridge_add(dev, panel,
-						   DRM_MODE_CONNECTOR_Unknown);
-	}
+						   DRM_MODE_CONNECTOR_DPI);
 
 	priv->dma_hwdesc = dma_alloc_coherent(dev, sizeof(*priv->dma_hwdesc),
 					      &priv->dma_hwdesc_phys,