Added openflow/drivers to obs.exclude
Added openflow/drivers to obs.exclude

Change-Id: I5854c872041a2224f6e6e73a029c6589b7894b34

y-higuchi/onos,lsinfo3/onos,rvhub/onos,chenxiuyang/onos,castroflavio/onos,kuujo/onos,castroflavio/onos,sdnwiselab/onos,oeeagle/onos,opennetworkinglab/onos,jmiserez/onos,kuujo/onos,oplinkoms/onos,lsinfo3/onos,osinstom/onos,rvhub/onos,CNlukai/onos-gerrit-test,VinodKumarS-Huawei/ietf96yang,Shashikanth-Huawei/bmp,jinlongliu/onos,castroflavio/onos,sonu283304/onos,oplinkoms/onos,oplinkoms/onos,oeeagle/onos,gkatsikas/onos,kkkane/ONOS,zsh2938/onos,maheshraju-Huawei/actn,maheshraju-Huawei/actn,chinghanyu/onos,packet-tracker/onos,chenxiuyang/onos,Shashikanth-Huawei/bmp,LorenzReinhart/ONOSnew,kuujo/onos,VinodKumarS-Huawei/ietf96yang,planoAccess/clonedONOS,sonu283304/onos,LorenzReinhart/ONOSnew,gkatsikas/onos,donNewtonAlpha/onos,sdnwiselab/onos,y-higuchi/onos,jmiserez/onos,zsh2938/onos,opennetworkinglab/onos,y-higuchi/onos,castroflavio/onos,Shashikanth-Huawei/bmp,gkatsikas/onos,LorenzReinhart/ONOSnew,opennetworkinglab/onos,kuujo/onos,opennetworkinglab/onos,y-higuchi/onos,planoAccess/clonedONOS,jinlongliu/onos,oplinkoms/onos,oplinkoms/onos,packet-tracker/onos,VinodKumarS-Huawei/ietf96yang,gkatsikas/onos,kkkane/ONOS,sdnwiselab/onos,oplinkoms/onos,packet-tracker/onos,donNewtonAlpha/onos,jinlongliu/onos,opennetworkinglab/onos,oeeagle/onos,sonu283304/onos,CNlukai/onos-gerrit-test,lsinfo3/onos,gkatsikas/onos,chinghanyu/onos,lsinfo3/onos,Shashikanth-Huawei/bmp,jmiserez/onos,y-higuchi/onos,mengmoya/onos,VinodKumarS-Huawei/ietf96yang,chinghanyu/onos,osinstom/onos,mengmoya/onos,donNewtonAlpha/onos,VinodKumarS-Huawei/ietf96yang,mengmoya/onos,CNlukai/onos-gerrit-test,kuujo/onos,donNewtonAlpha/onos,sonu283304/onos,maheshraju-Huawei/actn,sdnwiselab/onos,Shashikanth-Huawei/bmp,sdnwiselab/onos,mengmoya/onos,chenxiuyang/onos,maheshraju-Huawei/actn,planoAccess/clonedONOS,oeeagle/onos,CNlukai/onos-gerrit-test,rvhub/onos,rvhub/onos,chenxiuyang/onos,gkatsikas/onos,chinghanyu/onos,jinlongliu/onos,LorenzReinhart/ONOSnew,mengmoya/onos,oplinkoms/onos,osinstom/onos,kkkane/ONOS,packet-tracker/onos,sdnwiselab/onos,kuujo/onos,maheshraju-Huawei/actn,zsh2938/onos,jmiserez/onos,planoAccess/clonedONOS,osinstom/onos,kkkane/ONOS,opennetworkinglab/onos,kuujo/onos,osinstom/onos,donNewtonAlpha/onos,zsh2938/onos,LorenzReinhart/ONOSnew