Update git submodules

* Update docs/submodules/doctor from branch 'stable/fraser'
  - Updated Doctor feature configuration doc

    Change-Id: I1217439d46be7659fa372451c2bc686e8c2030f0
    Signed-off-by: Bertrand Souville <souville@docomolab-euro.com>
    (cherry picked from commit 1dbdc25cebb1404a8f75fc0c1e58a2923c9f0143)

diff --git a/docs/submodules/doctor b/docs/submodules/doctor
index 2bc7bbf..d60114f 160000 (submodule)
--- a/docs/submodules/doctor
+++ b/docs/submodules/doctor
@@ -1 +1 @@
-Subproject commit 2bc7bbf41ff1c843ee40fa8a6bf8b1513456544b
+Subproject commit d60114f1cdb1b50de88a8d4705a5cd7ee8c1fc89