Update git submodules

* Update docs/submodules/doctor from branch 'master'
  - support vitrage inspector for local installer

    JIRA: DOCTOR-122

    Change-Id: I771f778767a204e809d892c70603e479c1ed2f5c
    Signed-off-by: dongwenjuan <dong.wenjuan@zte.com.cn>

diff --git a/docs/submodules/doctor b/docs/submodules/doctor
index f71afa7..9e36d91 160000 (submodule)
--- a/docs/submodules/doctor
+++ b/docs/submodules/doctor
@@ -1 +1 @@
-Subproject commit f71afa73f5a56474036215b598e45123578c38d9
+Subproject commit 9e36d918fef054b8d23692c0ec8c25d7b0640c07