vcenter: Add port exception in plugin

[shajuvk]

[2016-03-30 11:07:50,186] [ERROR] [Thread-3:VRouterNotifier@90][] [vRouter 10.84.13.222 Exception in AddPort for VMI <3bd5859e-2774-489d-937b-3616b4ea84e5, f4a7129e-c972-4d0f-8819-fa3f1503eaaa, b5892a36-6497-428c-9dd3-621f9fdf1d26, null, 02:b5:89:2a:36:64, primary vlan = 100, isolated vlan = 101>: null]
java.lang.NullPointerException
        at net.juniper.contrail.contrail_vrouter_api.ContrailVRouterApi.UUIDToArray(ContrailVRouterApi.java:49)
        at net.juniper.contrail.contrail_vrouter_api.ContrailVRouterApi.AddPort(ContrailVRouterApi.java:176)
        at net.juniper.contrail.contrail_vrouter_api.ContrailVRouterApi.AddPort(ContrailVRouterApi.java:148)
        at net.juniper.contrail.vcenter.VRouterNotifier.created(VRouterNotifier.java:75)
        at net.juniper.contrail.vcenter.VirtualMachineInterfaceInfo.addPort(VirtualMachineInterfaceInfo.java:297)
        at net.juniper.contrail.vcenter.VirtualMachineInterfaceInfo.update(VirtualMachineInterfaceInfo.java:230)
        at net.juniper.contrail.vcenter.MainDB.update(MainDB.java:166)
        at net.juniper.contrail.vcenter.VirtualMachineInfo.update(VirtualMachineInfo.java:424)
        at net.juniper.contrail.vcenter.VCenterEventHandler.handleVmUpdateEvent(VCenterEventHandler.java:96)
        at net.juniper.contrail.vcenter.VCenterEventHandler.handle(VCenterEventHandler.java:68)
        at net.juniper.contrail.vcenter.VCenterNotify.handleChanges(VCenterNotify.java:386)
        at net.juniper.contrail.vcenter.VCenterNotify.handleUpdate(VCenterNotify.java:291)
        at net.juniper.contrail.vcenter.VCenterNotify.run(VCenterNotify.java:545)
        at java.lang.Thread.run(Thread.java:745)
[2016-03-30 11:07:50,187] [INFO ] [Thread-3:VCenterNotify@412][] [+++++++++++++Update Processing Complete +++++++++++++++++++++]

[shajuvk (shajuvk)]

removing blocker sine the latest code in R3.0.1 has the fix and the code change only needed in mainline build. This is still a bug in R3.1.0 build