vendor: fix backuptool version one final time

Change-Id: I0bdcacd0ffeb96705e4e04c5c6f39596e7206a03
diff --git a/prebuilt/common/bin/backuptool.sh b/prebuilt/common/bin/backuptool.sh
index dd660a5..fb0d5a4 100755
--- a/prebuilt/common/bin/backuptool.sh
+++ b/prebuilt/common/bin/backuptool.sh
@@ -4,7 +4,7 @@
 #
 
 export C=/tmp/backupdir
-export V=12.4
+export V=12.5
 export SYSDEV="$(readlink -nf "$2")"
 export SYSFS="$3"