MT#7267 Force lvcreate when re-deploying

Debian's BTS has all the details in #750212 which I just reported.
lvm2 version 2.02.106-1 includes a check for present signatures,
and without "--yes" option fai-setup-storage is hanging when
executing lvcreate on a device which includes such a (swap) signature.

deployment.sh

@@ -808,7 +808,7 @@ primary -       4096-   -       -
 disk_config lvm
 vg ngcp       ${DISK}1
 ngcp-root     /       -95%      ext3 rw
-ngcp-swap     swap    RAM:50%   swap sw
+ngcp-swap     swap    RAM:50%   swap sw lvcreateopts="--yes"
 EOF
 
   # make sure setup-storage doesn't fail if LVM is already present