drm/i915: Make INTEL_PCH_TYPE & co only take dev_priv

This saves 1872 bytes of .rodata strings.

v2:
 * Rebase.
 * Add parantheses around dev_priv. (Ville Syrjala)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: David Weinehall <david.weinehall@linux.intel.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Jani Nikula <jani.nikula@linux.intel.com>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
diff --git a/drivers/gpu/drm/i915/intel_audio.c b/drivers/gpu/drm/i915/intel_audio.c
index 81df29c..e20da59 100644
--- a/drivers/gpu/drm/i915/intel_audio.c
+++ b/drivers/gpu/drm/i915/intel_audio.c
@@ -430,7 +430,7 @@
 	 * infrastructure is not there yet.
 	 */
 
-	if (HAS_PCH_IBX(connector->dev)) {
+	if (HAS_PCH_IBX(dev_priv)) {
 		hdmiw_hdmiedid = IBX_HDMIW_HDMIEDID(pipe);
 		aud_config = IBX_AUD_CFG(pipe);
 		aud_cntl_st = IBX_AUD_CNTL_ST(pipe);