Update git submodules

* Update docs/submodules/doctor from branch 'master'
  - Delete project after stopping Inspector

    At cleanup phase, the sample Inspector fails to re-enable the state of
    the compute services. Such happens because the novaclient instance it's
    using is bound to the 'doctor' project, which has just been deleted at
    user.delete(). Thus, it is necessary to postpone the deletion of the
    project after stopping the inspector.

    Change-Id: I8cd5885cdfd3671a6c28342bdee65eac64dafaa8
    Signed-off-by: Carlos Goncalves <carlos.goncalves@neclab.eu>

diff --git a/docs/submodules/doctor b/docs/submodules/doctor
index d540d30..38c4512 160000 (submodule)
--- a/docs/submodules/doctor
+++ b/docs/submodules/doctor
@@ -1 +1 @@
-Subproject commit d540d3046d2a65ab8c4803c0a03c964558e05f44
+Subproject commit 38c45126cb9c993571246b307ff644b1343712c9