ALSA: hda - fix DisplayPort naming

DisplayPort is a digital display interface standard put forth by
the Video Electronics Standards Association (VESA). It defines a
new license-free, royalty-free, digital audio/video interconnect,
intended to be used primarily between a computer and its display monitor,
or a computer and a home-theater system.

				- From Wikipedia, the free encyclopedia
Signed-off-by: NWu Fengguang <wfg@linux.intel.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

sound/pci/hda/hda_eld.c

@@ -72,7 +72,7 @@ static char *cea_speaker_allocation_names[] = {
 
 static char *eld_connection_type_names[4] = {
 	"HDMI",
-	"Display Port",
+	"DisplayPort",
 	"2-reserved",
 	"3-reserved"
 };