Add drone + build motsognir

Signed-off-by: Christian Richter <crichter@owncloud.com>

.drone.star

@@ -9,12 +9,9 @@ def main(ctx):
 
 def stepPR(arch):
     return {
-        "kind":
+        "kind": "pipeline",
-        "pipeline",
+        "type": "docker",
-        "type":
+        "name": "docker-build-%s" % (arch),
-        "docker",
-        "name":
-        "docker-%s" % (arch),
         "platform": {
             "os": "linux",
             "arch": arch,
@@ -46,12 +43,9 @@ def stepPR(arch):
 
 def stepMergeMaster(arch):
     return {
-        "kind":
+        "kind": "pipeline",
-        "pipeline",
+        "type": "docker",
-        "type":
+        "name": "docker-publish-%s" % (arch),
-        "docker",
-        "name":
-        "docker-%s" % (arch),
         "platform": {
             "os": "linux",
             "arch": arch,