ALSA: firewire: use 'GPL' string for module license contributed by Takashi Sakamoto

In MODULE_LICENSE macro, "GPL" string obsoletes "GPL v2" string by a
commit bf7fbeea ("module: Cure the MODULE_LICENSE "GPL" vs. "GPL v2"
bogosity").

This commit uses the preferable expression.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20230611144445.221529-2-o-takashi@sakamocchi.jpSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/firewire/bebob/bebob.c

@@ -15,7 +15,7 @@
 
 MODULE_DESCRIPTION("BridgeCo BeBoB driver");
 MODULE_AUTHOR("Takashi Sakamoto <o-takashi@sakamocchi.jp>");
-MODULE_LICENSE("GPL v2");
+MODULE_LICENSE("GPL");
 
 static int index[SNDRV_CARDS]	= SNDRV_DEFAULT_IDX;
 static char *id[SNDRV_CARDS]	= SNDRV_DEFAULT_STR;

sound/firewire/digi00x/digi00x.c

@@ -9,7 +9,7 @@
 
 MODULE_DESCRIPTION("Digidesign Digi 002/003 family Driver");
 MODULE_AUTHOR("Takashi Sakamoto <o-takashi@sakamocchi.jp>");
-MODULE_LICENSE("GPL v2");
+MODULE_LICENSE("GPL");
 
 #define VENDOR_DIGIDESIGN	0x00a07e
 #define MODEL_CONSOLE		0x000001

sound/firewire/fireface/ff.c

@@ -11,7 +11,7 @@
 
 MODULE_DESCRIPTION("RME Fireface series Driver");
 MODULE_AUTHOR("Takashi Sakamoto <o-takashi@sakamocchi.jp>");
-MODULE_LICENSE("GPL v2");
+MODULE_LICENSE("GPL");
 
 static void name_card(struct snd_ff *ff)
 {

sound/firewire/fireworks/fireworks.c

@@ -18,7 +18,7 @@
 
 MODULE_DESCRIPTION("Echo Fireworks driver");
 MODULE_AUTHOR("Takashi Sakamoto <o-takashi@sakamocchi.jp>");
-MODULE_LICENSE("GPL v2");
+MODULE_LICENSE("GPL");
 
 static int index[SNDRV_CARDS]	= SNDRV_DEFAULT_IDX;
 static char *id[SNDRV_CARDS]	= SNDRV_DEFAULT_STR;

sound/firewire/motu/motu.c

@@ -11,7 +11,7 @@
 
 MODULE_DESCRIPTION("MOTU FireWire driver");
 MODULE_AUTHOR("Takashi Sakamoto <o-takashi@sakamocchi.jp>");
-MODULE_LICENSE("GPL v2");
+MODULE_LICENSE("GPL");
 
 const unsigned int snd_motu_clock_rates[SND_MOTU_CLOCK_RATE_COUNT] = {
 	/* mode 0 */

sound/firewire/tascam/tascam.c

@@ -9,7 +9,7 @@
 
 MODULE_DESCRIPTION("TASCAM FireWire series Driver");
 MODULE_AUTHOR("Takashi Sakamoto <o-takashi@sakamocchi.jp>");
-MODULE_LICENSE("GPL v2");
+MODULE_LICENSE("GPL");
 
 static const struct snd_tscm_spec model_specs[] = {
 	{