ASoC: Ux500: Correct license strings

GPLv2 -> GPL v2

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Ola Lilja <ola.o.lilja@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/codecs/ab8500-codec.c b/sound/soc/codecs/ab8500-codec.c
index 95dc7d5..389dd66 100644
--- a/sound/soc/codecs/ab8500-codec.c
+++ b/sound/soc/codecs/ab8500-codec.c
@@ -2518,4 +2518,4 @@
 };
 module_platform_driver(ab8500_codec_platform_driver);
 
-MODULE_LICENSE("GPLv2");
+MODULE_LICENSE("GPL v2");