Update git submodules

* Update docs/submodules/doctor from branch 'master'
  - bugfix: fix the filename of ssh tunnel

    The stunnel will be setup failed in the docker if we have the .log
    at the end of file name.

    Change-Id: I272a9fa3b668d49b0e26752403ad41a67dcfedc7
    Signed-off-by: dongwenjuan <dong.wenjuan@zte.com.cn>

diff --git a/docs/submodules/doctor b/docs/submodules/doctor
index e70bf24..1351038 160000 (submodule)
--- a/docs/submodules/doctor
+++ b/docs/submodules/doctor
@@ -1 +1 @@
-Subproject commit e70bf248daac03eee6b449cd1654d2ee6265dd8c
+Subproject commit 1351038a65739b8d799820de515178326ad05f7b