Update git submodules

* Update docs/submodules/doctor from branch 'master'
  - Merge "fix package path and move files under doctor_tests"
  - fix package path and move files under doctor_tests

    Change-Id: Ibde6a36c43064e5fbea1a0b7a9b49349c343e42f
    Signed-off-by: Ryota MIBU <r-mibu@cq.jp.nec.com>

diff --git a/docs/submodules/doctor b/docs/submodules/doctor
index 87da3b9..25759e0 160000 (submodule)
--- a/docs/submodules/doctor
+++ b/docs/submodules/doctor
@@ -1 +1 @@
-Subproject commit 87da3b937f3130c49cc84608b49a1556fa3d2728
+Subproject commit 25759e0a0204765a7a9454d7586df66592e943c2