MAINTAINERS: Update git url for the wl1271 driver

We are integrating wl1271 commits via a new git tree now and wl1271
development should be made on top of the new tree.

Update the repository url accordingly.

Cc: John W. Linville <linville@tuxdriver.com>
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>

MAINTAINERS

@@ -6321,7 +6321,7 @@ WL1271 WIRELESS DRIVER
 M:	Luciano Coelho <luciano.coelho@nokia.com>
 L:	linux-wireless@vger.kernel.org
 W:	http://wireless.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-testing.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/luca/wl12xx.git
 S:	Maintained
 F:	drivers/net/wireless/wl12xx/wl1271*
 F:	include/linux/wl12xx.h