Merge branch 'PR/libmount-canonicalize-cleanup' of https://github.com/karelzak/util...

* 'PR/libmount-canonicalize-cleanup' of https://github.com/karelzak/util-linux-work:
  lib/canonicalize: use ul_ prefix
  lib/canonicalize: introduce generic drop-permission caller
  meson: cleanup tests to use libcommon.la
  autotools: cleanup tests to use libcommon.la
  tests: add canonicalize test
  lib/canonicalize: refactor canonicalize_path()
  lib/canonicalize: rename to ul_absolute_path()