Update .drone.yml to clone the mandatory repo

.drone.yml

@@ -1,5 +1,21 @@
-pipeline:
-  build:
+kind: pipeline
+type: docker
+name: default
+
+clone:
+  disable: true
+
+steps:
+- name: fetch
+    image: registry.nadal-fr.com/buildroot_dev
+    commands:
+      - git clone ssh://git@git.nadal-fr.com:222/domo/domo-iot.git
+      - git clone ssh://git@git.nadal-fr.com:222/domo/qlibc.git
+      - git clone ssh://git@git.nadal-fr.com:222/domo/libevent.git
+      - git clone ssh://git@git.nadal-fr.com:222/domo/nats.c.git
+      - git clone ssh://git@git.nadal-fr.com:222/domo/json-c.git
+
+- name: build
     image: registry.nadal-fr.com/buildroot_dev
     commands:
       - pwd && ls