net: remove bootindex property from qdev to qom

Remove bootindex form qdev property to qom, things will
continue to work just fine, and we can use qom features
which are not supported by qdev property.
Signed-off-by: NGonglei <arei.gonglei@huawei.com>
Reviewed-by: NGerd Hoffmann <kraxel@redhat.com>
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

include/net/net.h

@@ -36,8 +36,7 @@ typedef struct NICConf {
 #define DEFINE_NIC_PROPERTIES(_state, _conf)                            \
     DEFINE_PROP_MACADDR("mac",   _state, _conf.macaddr),                \
     DEFINE_PROP_VLAN("vlan",     _state, _conf.peers),                   \
-    DEFINE_PROP_NETDEV("netdev", _state, _conf.peers),                   \
-    DEFINE_PROP_INT32("bootindex", _state, _conf.bootindex, -1)
+    DEFINE_PROP_NETDEV("netdev", _state, _conf.peers)
 
 
 /* Net clients */