Bump branch number after branching refs/heads/firmware-bolt_kirby-4979.B

Change-Id: I802794ca906586526ddc5d3dea8e71aa8303cf57
diff --git a/chromeos/config/chromeos_version.sh b/chromeos/config/chromeos_version.sh
index d33e8db..f5582fb 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.