manifest: Switch to new kirkstone branch in meta-clang

As meta-clang now have a kirkstone branch, we will use that, as the master
branch will sometime later be repurposed for following yocto releases.

Signed-off-by: Esben Haabendal <esben.haabendal@huawei.com>

manifests/branch.xml

@@ -16,6 +16,6 @@ SPDX-FileCopyrightText: Huawei Inc.
   <project name="bitbake" remote="openembedded" revision="2.0" />
   <project name="openembedded-core" remote="openembedded" path="oe-core"/>
   <project name="meta-openembedded" remote="openembedded" revision="master" />
-  <project name="meta-clang" remote="kraj" revision="master" />
+  <project name="meta-clang" remote="kraj" />
   
 </manifest>