omni: up backup script to a14

Change-Id: Iec6bd7f51338b57e9d58171548c7a8edb820a2c2
diff --git a/prebuilt/common/bin/backuptool.sh b/prebuilt/common/bin/backuptool.sh
index 8722de2..2c0b88a 100755
--- a/prebuilt/common/bin/backuptool.sh
+++ b/prebuilt/common/bin/backuptool.sh
@@ -6,7 +6,7 @@
 export C=/tmp/backupdir
 export SYSDEV="$(readlink -nf "$2")"
 export SYSFS="$3"
-export V=13
+export V=14
 
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