rest_router: fix OFPSetAsync bit mask
rest_router: fix OFPSetAsync bit mask

Signed-off-by: FUJITA Tomonori <93dac1fe9c4b2a3957982200319981492ad4976e@lab.ntt.co.jp>

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