backuptool: Update CM version

Change-Id: I646a6706faa35908bbca767a03f97172265390ce
diff --git a/prebuilt/common/bin/backuptool.sh b/prebuilt/common/bin/backuptool.sh
index 8f613af..fbedf93 100755
--- a/prebuilt/common/bin/backuptool.sh
+++ b/prebuilt/common/bin/backuptool.sh
@@ -5,7 +5,7 @@
 
 export C=/tmp/backupdir
 export S=/system
-export V=9
+export V=10
 
 # Mount /system if it is not already mounted
 mount_system() {