NetKVM: BZ#1096505: zeroing index table instead of setting to INVALID_PROCESSOR_INDEX

Signed-off-by: Joseph Hindin <yhindin@redhat.com>
NetKVM: BZ#1096505: Freeing descriptors after shutdown

Signed-off-by: Joseph Hindin <yhindin@redhat.com>
NetKVM: BZ#1096505: Array constructor/destructor replaced with two-phase construction and disabled

Signed-off-by: Joseph Hindin <yhindin@rehat.com>