drm/i915: Use correct iterator macro

for_each_connector_in_state will be removed, so use the right state
here.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: intel-gfx@lists.freedesktop.org
Link: http://patchwork.freedesktop.org/patch/msgid/20170712081344.25495-7-maarten.lankhorst@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/intel_hdmi.c

@@ -1321,7 +1321,7 @@ static bool hdmi_12bpc_possible(struct intel_crtc_state *crtc_state)
 	if (crtc_state->output_types != 1 << INTEL_OUTPUT_HDMI)
 		return false;
 
-	for_each_connector_in_state(state, connector, connector_state, i) {
+	for_each_new_connector_in_state(state, connector, connector_state, i) {
 		const struct drm_display_info *info = &connector->display_info;
 
 		if (connector_state->crtc != crtc_state->base.crtc)