Update git submodules

* Update docs/submodules/auto from branch 'master'
  - Merge "vcpe_testscripts"
  - vcpe_testscripts

    Change-Id: I8f438c65f1d623f2125e1bf073646e5c2172049d
    Signed-off-by: zc9211 <zhangchen.bri@chinatelecom.cn>

diff --git a/docs/submodules/auto b/docs/submodules/auto
index c07d93f..7375248 160000 (submodule)
--- a/docs/submodules/auto
+++ b/docs/submodules/auto
@@ -1 +1 @@
-Subproject commit c07d93f74d5581f65dd1178cb22acb0b55121c99
+Subproject commit 73752489bd36221f187542c6bab20d601b006e6d