ALSA: hda - Introduce get_wcaps_type() macro

Add a helper macro to retrieve the widget type from wiget cap bits.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/hda_proc.c b/sound/pci/hda/hda_proc.c
index 418c5d1..a721eb0 100644
--- a/sound/pci/hda/hda_proc.c
+++ b/sound/pci/hda/hda_proc.c
@@ -508,8 +508,7 @@
 		unsigned int wid_caps =
 			snd_hda_param_read(codec, nid,
 					   AC_PAR_AUDIO_WIDGET_CAP);
-		unsigned int wid_type =
-			(wid_caps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
+		unsigned int wid_type = get_wcaps_type(wid_caps);
 		hda_nid_t conn[HDA_MAX_CONNECTIONS];
 		int conn_len = 0;