[ {
  "tenant" : "DEFAULT_TENANT",
  "devices" : [ {
    "id" : "4711",
    "data" : { }
  } ]
} ]
[ {
  "tenant" : "DEFAULT_TENANT",
  "devices" : [ {
    "device-id" : "4711",
    "data" : { }
  } ]
} ]
Fix device identity field name.
Fix device identity field name.

Signed-off-by: Kai Hudalla <6c3288b94355003a6c5f12ba233f9fc06ef02a62@bosch-si.com>