fix whereabouts IPAM config for macvlan when multiNICIPAM is set to false

Signed-off-by: Min Zhang <[email protected]>

Author: minmzzhang

config/samples/multinicnetwork/macvlan.yaml

@@ -6,10 +6,11 @@ metadata:
 spec:
   subnet: "192.168.0.0/16"
   ipam: |
-    { "type": "whereabouts" }
+    {
+      "type": "whereabouts",
+      "range": "192.168.0.0/16"
+    }
   multiNICIPAM: false
   plugin:
-    cniVersion: "0.3.0"
+    cniVersion: "0.3.1"
     type: macvlan
-  masterNets:
-    - "172.31.32.0/20"