Bump branch number after branching refs/heads/stabilize-smaug-7566.B

Change-Id: Ib4fb97b88396b28a9a3f23a653e38ac0c7530bff
diff --git a/chromeos/config/chromeos_version.sh b/chromeos/config/chromeos_version.sh
index 5e26322..81071eb 100755
--- a/chromeos/config/chromeos_version.sh
+++ b/chromeos/config/chromeos_version.sh
@@ -20,7 +20,7 @@
   # Release Branch number.
   # Increment by 1 for every release build on a branch.
   # Reset to 0 when increasing release build number.
-  export CHROMEOS_BRANCH=0
+  export CHROMEOS_BRANCH=1
 
   # Patch number.
   # Increment by 1 in case a non-scheduled branch release build is necessary.