Update git submodules

* Update docs/submodules/doctor from branch 'master'
  - Merge "refactor sample inspector"
  - refactor sample inspector

    JIRA: DOCTOR-98

    Change-Id: I7110b680d0a0c64b1b2666abcea183e73373dca7
    Signed-off-by: dongwenjuan <dong.wenjuan@zte.com.cn>

diff --git a/docs/submodules/doctor b/docs/submodules/doctor
index 9eb18ca..6b11712 160000 (submodule)
--- a/docs/submodules/doctor
+++ b/docs/submodules/doctor
@@ -1 +1 @@
-Subproject commit 9eb18cabdddda3a2e0bbd05076bc1786ebe6be8b
+Subproject commit 6b117129e778b4877b17cf594aec57fb029cb83d