Update git submodules

* Update docs/submodules/doctor from branch 'master'
  - bugfix: certificate for https for MCP in baremetal

    In Mcp baremetal env, doctor test is always failed because of
    ssl certificate for https.

    Change-Id: Ia443c6463fe177ff4e1ab5a86429750fbd23740c
    Signed-off-by: dongwenjuan <dong.wenjuan@zte.com.cn>

diff --git a/docs/submodules/doctor b/docs/submodules/doctor
index 697f0cc..62bbcb5 160000 (submodule)
--- a/docs/submodules/doctor
+++ b/docs/submodules/doctor
@@ -1 +1 @@
-Subproject commit 697f0cc6ed39b139a2ef022b8e5ef8ef80bbff19
+Subproject commit 62bbcb5c9c24a1801c68ca5f2ec8a03c13b35ff1