Update git submodules

* Update docs/submodules/doctor from branch 'master'
  - Merge "update the docs of testing"
  - update the docs of testing

    Change-Id: Ibfc04831f12778cb0cc3769781b864a56a581881
    Signed-off-by: dongwenjuan <dong.wenjuan@zte.com.cn>

diff --git a/docs/submodules/doctor b/docs/submodules/doctor
index aa16cb3..1e19196 160000 (submodule)
--- a/docs/submodules/doctor
+++ b/docs/submodules/doctor
@@ -1 +1 @@
-Subproject commit aa16cb3987bad7abfb8743cb205980a50d5f12fe
+Subproject commit 1e19196e60c82eddbdcf4856babf069cea262dbb