ASoC: Point at kernel.org git

The Wolfson git is not currently tracking bleeding edge ASoC so change
to my kernel.org git which is doing so.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

MAINTAINERS

@@ -5273,7 +5273,7 @@ P:	Liam Girdwood
 M:	lrg@slimlogic.co.uk
 P:	Mark Brown
 M:	broonie@opensource.wolfsonmicro.com
-T:	git git://opensource.wolfsonmicro.com/linux-2.6-asoc
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound-2.6.git
 L:	alsa-devel@alsa-project.org (subscribers-only)
 W:	http://alsa-project.org/main/index.php/ASoC
 S:	Supported