ALSA: rename "PC Speaker" and "PC Beep" controls to "Beep"

To avoid confusion in control names for the standard analog PC Beep generator
using a small Internal PC Speaker, rename all related "PC Speaker" and "PC
Beep" controls to "Beep" only. This name is more universal and can be also
used on more platforms without confusion.

Introduce also "Internal Speaker" in ControlNames.txt for systems with
full-featured build-in internal speaker.

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/ac97/ac97_codec.c b/sound/pci/ac97/ac97_codec.c
index 78288db..20cb60a 100644
--- a/sound/pci/ac97/ac97_codec.c
+++ b/sound/pci/ac97/ac97_codec.c
@@ -603,8 +603,8 @@
 };
 
 static const struct snd_kcontrol_new snd_ac97_controls_pc_beep[2] = {
-AC97_SINGLE("PC Speaker Playback Switch", AC97_PC_BEEP, 15, 1, 1),
-AC97_SINGLE("PC Speaker Playback Volume", AC97_PC_BEEP, 1, 15, 1)
+AC97_SINGLE("Beep Playback Switch", AC97_PC_BEEP, 15, 1, 1),
+AC97_SINGLE("Beep Playback Volume", AC97_PC_BEEP, 1, 15, 1)
 };
 
 static const struct snd_kcontrol_new snd_ac97_controls_mic_boost =
@@ -1393,7 +1393,7 @@
 		}
 	}
 	
-	/* build PC Speaker controls */
+	/* build Beep controls */
 	if (!(ac97->flags & AC97_HAS_NO_PC_BEEP) && 
 		((ac97->flags & AC97_HAS_PC_BEEP) ||
 	    snd_ac97_try_volume_mix(ac97, AC97_PC_BEEP))) {