daemon: lvm: Pass --yes option to force pvresize (RHBZ#1460577).

LVM2 >= 2.02.171 requires the ‘--yes’ option to force pvresize to work
in various circumstances, eg. reducing the size of an existing PV.

Pass this flag unconditionally.

Note this does NOT break earlier versions which just ignore this flag.

daemon/lvm.c

@@ -625,6 +625,7 @@ do_pvresize_size (const char *device, int64_t size)
 
   r = command (NULL, &err,
                str_lvm, "pvresize",
+               "--yes",
                "--setphysicalvolumesize", buf,
                device, NULL);
   if (r == -1) {