tests: move misc/ul to ul/ directory

Reference: https://github.com/karelzak/util-linux/pull/1165#issuecomment-715173662
Signed-off-by: Sami Kerola <kerolasa@iki.fi>

diff --git a/tests/expected/misc/ul b/tests/expected/ul/ul
similarity index 100%
rename from tests/expected/misc/ul
rename to tests/expected/ul/ul

diff --git a/tests/ts/misc/ul b/tests/ts/ul/ul
similarity index 100%
rename from tests/ts/misc/ul
rename to tests/ts/ul/ul