CI for SSC: Allow for submodules & using the gitlab repo's libraries

.gitlab-ci.yml

@@ -59,8 +59,10 @@ build_ssc:
     expire_in: 6 mos
 
   script:
+    - git submodule update --init
     # use gitlab wifi lib instead of github wifi lib
     - git clone ssh://git@gitlab.espressif.cn:27227/idf/esp32-wifi-lib.git
+    - rm -rf components/esp32/lib/*
     - cp esp32-wifi-lib/* components/esp32/lib/
     - git clone ssh://git@gitlab.espressif.cn:27227/yinling/SSC.git
     - cd SSC