tests: rearrange sometest groupings.

All 'update' tests in 04
More imsm tests in 09

Signed-off-by: NeilBrown <neilb@suse.de>

diff --git a/tests/06r5swap b/tests/04r5swap
similarity index 100%
rename from tests/06r5swap
rename to tests/04r5swap

diff --git a/tests/06update-uuid b/tests/04update-uuid
similarity index 100%
rename from tests/06update-uuid
rename to tests/04update-uuid

diff --git a/tests/08imsm-overlap b/tests/09imsm-overlap
similarity index 100%
rename from tests/08imsm-overlap
rename to tests/09imsm-overlap