uvol: bump version to 1.1

uvol: bump version to 1.1

manage volume state over ubus instead of the rootfs

Rework the volume lifecycle around blockd's ubus API, so volume state
lives entirely on the self-describing LVM/UBI backing store and never
leaks into the firmware rootfs.

- register active volumes with blockd over ubus (mount.uc) instead of
  spooling mounts into /etc/config/fstab (uci.uc)

- bootstrap .meta from 'uvol boot' and drop the broken 90-uvol-init
  uci-default

- run 'uvol boot' straight from the mount.ready trigger, and query
  'ubus call block status' at service start to cover storage already
  being ready

- defer removal of a volume whose backing device is still held, and
  reap it from the mount.umount trigger once it is free

- enforce content-addressed "<algo>-<hexdigest>" volumes in the
  dispatcher: reuse an existing volume of the same digest, verify
  every write

- verify a content-addressed write in place while the volume is still
  incomplete, reporting EBADMSG on mismatch instead of flipping
  volume state

- purge incomplete wo/wp leftovers on boot and reclaim an exactly
  matching one on create

- serialise mutating commands with a device-wide lock, plus a
  per-volume lock ordered after it so a slow write cannot stall other
  volumes

- add a grow-only 'resize' verb to both backends: lvextend plus the
  matching fs-grow tool for lvm, ubirsvol for ubi

- create ext4 volumes with a journal (was ext2) and request check_fs
  when registering a read-write volume

- declare read-only mounts to blockd rather than letting block guess
  from the filesystem

- reject non-numeric and non-positive sizes in create and resize

- report its own version

- simplify command line parsing (drop compatibility with ancient ucode)

Requires the matching fstools changes from
openwrt/openwrt@9b11fa4088c6a.

Signed-off-by: Daniel Golle <redacted>