drm/i915: Drop port_mst_index parameter from pin/eld callback

The port_mst_index parameter was reserved for future use, but
maintainers prefer to add it later when it is actually used.

[Note: this is an update patch to commit [51e1d83cab99: drm/i915: Call
 audio pin/ELD notify function] where I mistakenly applied the older
 version.  Jani and Daniel's review tags were to the latest version,
 so I add them below, too -- tiwai]

Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 932292c..acbfbe08 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -2324,7 +2324,7 @@
 	snd_hda_codec_set_power_to_all(codec, fg, power_state);
 }
 
-static void intel_pin_eld_notify(void *audio_ptr, int port, int port_mst_index)
+static void intel_pin_eld_notify(void *audio_ptr, int port)
 {
 	struct hda_codec *codec = audio_ptr;
 	int pin_nid = port + 0x04;