block: update git url for blktrace

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/block/Kconfig b/block/Kconfig
index 9bda7bc..7db9a41 100644
--- a/block/Kconfig
+++ b/block/Kconfig
@@ -38,7 +38,7 @@
 	  on a block device queue. For more information (and the user space
 	  support tools needed), fetch the blktrace app from:
 
-	  git://brick.kernel.dk/data/git/blktrace.git
+	  git://git.kernel.dk/blktrace.git
 
 config LSF
 	bool "Support for Large Single Files"