ofproto_v1_0_parser: fix OFPPacketOut serializer
ofproto_v1_0_parser: fix OFPPacketOut serializer

0xffffffff == -1 as uint32_t.
However python integer representation isn't sized integer.
So assert buffer_id == -1 doesn't hold. use 0xffffffff explicitly instead
of -1.

Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.7/gevent/greenlet.py", line 390, in run
    result = self._run(*self.args, **self.kwargs)
  File "/ryu/bin/ryu/app/discovery.py", line 421, in lldp_loop
    self.send_lldp_packet(dp, port_no)
  File "/ryu/bin/ryu/app/discovery.py", line 390, in send_lldp_packet
    dp.send_packet_out(actions=actions, data=port_data.data)
  File "/ryu/bin/ryu/controller/controller.py", line 211, in send_packet_out
    self.send_msg(packet_out)
  File "/ryu/bin/ryu/controller/controller.py", line 181, in send_msg
    self.serialize_msg(msg)
  File "/ryu/bin/ryu/controller/controller.py", line 178, in serialize_msg
    msg.serialize()
  File "/ryu/bin/ryu/ofproto/ofproto_parser.py", line 119, in serialize
    self._serialize_body()
  File "/ryu/bin/ryu/ofproto/ofproto_v1_0_parser.py", line 1210, in _serialize_body
    assert self.buffer_id == -1
AssertionError

Signed-off-by: Isaku Yamahata <4b3abd66323411eeceff090ab3754dd766fc4b25@valinux.co.jp>
Signed-off-by: FUJITA Tomonori <93dac1fe9c4b2a3957982200319981492ad4976e@lab.ntt.co.jp>

StephenKing/summerschool-2015-ryu,jalilm/ryu,StephenKing/ryu,evanscottgray/ryu,OpenState-SDN/ryu,habibiefaried/ryu,zangree/ryu,ttsubo/ryu,ntts-clo/ryu,shinpeimuraoka/ryu,Tejas-Subramanya/RYU_MEC,openvapour/ryu,haniehrajabi/ryu,ynkjm/ryu,darjus-amzn/ryu,John-Lin/ryu,Zouyiran/ryu,lagopus/ryu-lagopus-ext,osrg/ryu,TakeshiTseng/ryu,zangree/ryu,zangree/ryu,fujita/ryu,ykaneko/ryu,jkoelker/ryu,samrussell/ryu,ykaneko/ryu,fkakuma/ryu,haniehrajabi/ryu,StephenKing/ryu,openvapour/ryu,openvapour/ryu,pichuang/ryu,osrg/ryu,hisaharu/ryu,lagopus/ryu-lagopus-ext,ysywh/ryu,jalilm/ryu,StephenKing/summerschool-2015-ryu,TakeshiTseng/ryu,hisaharu/ryu,StephenKing/ryu,ttsubo/ryu,o3project/ryu-oe,ysywh/ryu,ynkjm/ryu,Tejas-Subramanya/RYU_MEC,citrix-openstack-build/ryu,elahejalalpour/ELRyu,shinpeimuraoka/ryu,habibiefaried/ryu,torufuru/oolhackathon,lsqtongxin/ryu,lzppp/mylearning,osrg/ryu,umkcdcrg01/ryu_openflow,mikhaelharswanto/ryu,zangree/ryu,elahejalalpour/ELRyu,gopchandani/ryu,samrussell/ryu,zyq001/ryu,gareging/SDN_Framework,gopchandani/ryu,diogommartins/ryu,Tejas-Subramanya/RYU_MEC,lsqtongxin/ryu,iwaseyusuke/ryu,umkcdcrg01/ryu_openflow,jkoelker/ryu,ttsubo/ryu,Zouyiran/ryu,elahejalalpour/ELRyu,TakeshiTseng/ryu,zangree/ryu,o3project/ryu-oe,TakeshiTseng/ryu,OpenState-SDN/ryu,torufuru/OFPatchPanel,gareging/SDN_Framework,lsqtongxin/ryu,shinpeimuraoka/ryu,StephenKing/summerschool-2015-ryu,ynkjm/ryu,openvapour/ryu,muzixing/ryu,Tesi-Luca-Davide/ryu,ysywh/ryu,Tesi-Luca-Davide/ryu,alyosha1879/ryu,John-Lin/ryu,jkoelker/ryu,Tesi-Luca-Davide/ryu,diogommartins/ryu,OpenState-SDN/ryu,unifycore/ryu,sivaramakrishnansr/ryu,ttsubo/ryu,takahashiminoru/ryu,Tejas-Subramanya/RYU_MEC,yamt/ryu,muzixing/ryu,John-Lin/ryu,StephenKing/summerschool-2015-ryu,diogommartins/ryu,fujita/ryu,pichuang/ryu,Zouyiran/ryu,pichuang/ryu,iwaseyusuke/ryu,muzixing/ryu,habibiefaried/ryu,zyq001/ryu,habibiefaried/ryu,umkcdcrg01/ryu_openflow,umkcdcrg01/ryu_openflow,darjus-amzn/ryu,yamt/ryu,castroflavio/ryu,habibiefaried/ryu,torufuru/oolhackathon,shinpeimuraoka/ryu,alyosha1879/ryu,alyosha1879/ryu,jalilm/ryu,zyq001/ryu,iwaseyusuke/ryu,sivaramakrishnansr/ryu,elahejalalpour/ELRyu,Tejas-Subramanya/RYU_MEC,yamada-h/ryu,citrix-openstack/build-ryu,zyq001/ryu,elahejalalpour/ELRyu,darjus-amzn/ryu,fkakuma/ryu,citrix-openstack-build/ryu,OpenState-SDN/ryu,ysywh/ryu,diogommartins/ryu,Zouyiran/ryu,muzixing/ryu,fujita/ryu,fkakuma/ryu,Tesi-Luca-Davide/ryu,osrg/ryu,yamada-h/ryu,jazzmes/ryu,evanscottgray/ryu,iwaseyusuke/ryu,fkakuma/ryu,gopchandani/ryu,fujita/ryu,lsqtongxin/ryu,alanquillin/ryu,ntts-clo/mld-ryu,muzixing/ryu,torufuru/OFPatchPanel,iwaseyusuke/ryu,ysywh/ryu,StephenKing/ryu,lagopus/ryu-lagopus-ext,diogommartins/ryu,pichuang/ryu,zyq001/ryu,castroflavio/ryu,lagopus/ryu-lagopus-ext,haniehrajabi/ryu,ynkjm/ryu,alanquillin/ryu,gopchandani/ryu,castroflavio/ryu,jalilm/ryu,mikhaelharswanto/ryu,jalilm/ryu,torufuru/oolhackathon,jazzmes/ryu,hisaharu/ryu,John-Lin/ryu,sivaramakrishnansr/ryu,lzppp/mylearning,fkakuma/ryu,hisaharu/ryu,sivaramakrishnansr/ryu,takahashiminoru/ryu,hisaharu/ryu,darjus-amzn/ryu,ynkjm/ryu,unifycore/ryu,alanquillin/ryu,yamt/ryu,shinpeimuraoka/ryu,gareging/SDN_Framework,ttsubo/ryu,Zouyiran/ryu,John-Lin/ryu,haniehrajabi/ryu,umkcdcrg01/ryu_openflow,gareging/SDN_Framework,takahashiminoru/ryu,sivaramakrishnansr/ryu,StephenKing/ryu,alanquillin/ryu,alyosha1879/ryu,darjus-amzn/ryu,openvapour/ryu,fujita/ryu,lzppp/mylearning,osrg/ryu,Tesi-Luca-Davide/ryu,gareging/SDN_Framework,takahashiminoru/ryu,haniehrajabi/ryu,alanquillin/ryu,lsqtongxin/ryu,lzppp/mylearning,lagopus/ryu-lagopus-ext,ntts-clo/ryu,pichuang/ryu,ntts-clo/mld-ryu,gopchandani/ryu,yamt/ryu,takahashiminoru/ryu,jazzmes/ryu,TakeshiTseng/ryu,StephenKing/summerschool-2015-ryu,OpenState-SDN/ryu,lzppp/mylearning,evanscottgray/ryu,yamt/ryu,citrix-openstack/build-ryu