Move plugin shutdown after layerstore shtudown
Move plugin shutdown after layerstore shtudown

This ensures that graphdriver plugins can properly cleanup on daemon
exit.
Also prevents errors during shutdown when it tries to send the plugin a
`Cleanup()` request but ultimately times out since it's already been
shutdown.

Signed-off-by: Brian Goff <dc73d0991b982a8303e713ef531a313af77e242a@gmail.com>

estesp/docker,amatsus/docker,erikstmartin/docker,gnailuy/docker,raja-sami-10p/moby,djs55/docker,jimjag/docker,yummypeng/docker,moby/moby,KingEmet/docker,dccurtis/docker,ibuildthecloud/docker,erikstmartin/docker,estesp/docker,yongtang/docker,rremer/moby,haveatry/docker,yongtang/docker,gnailuy/docker,coreos/docker,miminar/docker,diogomonica/docker,tklauser/docker,diogomonica/docker,darrenstahlmsft/moby,mahak/docker,jimjag/docker,nalind/docker,dmcgowan/docker,pradipd/moby,KarthikNayak/docker,dgageot/docker,ibuildthecloud/docker,tophj-ibm/moby,konstruktoid/docker-1,moul/docker,JMesser81/docker,jimjag/docker,Syntaxide/docker,lixiaobing1/docker,fcrisciani/docker,yosifkit/docker,jameszhan/docker,nawawi/docker,dccurtis/docker,dperny/docker,paralin/docker,resin-io/docker,pramodhkp/moby,kolyshkin/docker,duglin/docker,bonczj/moby-json-file-logger,HideoYamauchi/docker,tophj-ibm/docker,Ramzec/docker,dccurtis/docker,AkihiroSuda/docker,gjaskiewicz/moby,qudongfang/docker,rancher/docker,crosbymichael/docker,jthelin/docker,flavio/docker,justincormack/docker,lixiaobing1/docker,thaJeztah/docker,lixiaobing10051267/docker,KingEmet/docker,allencloud/docker,tklauser/docker,imkin/moby,shhsu/docker,sarnautov/moby,tmp6154/docker,mahak/docker,ColinHebert/docker,HideoYamauchi/docker,Ramzec/docker,vdemeester/docker,mikebrow/docker,konstruktoid/docker-upstream,whuwxl/docker,crosbymichael/docker,naveed-jamil-tenpearls/moby,xuxinkun/docker,moul/docker,moypray/docker,kolyshkin/moby,nawawi/docker,gnailuy/docker,tophj-ibm/moby,mtesselH/docker,jwhonce/docker,trebonian/docker,sdurrheimer/docker,trebonian/docker,darrenstahlmsft/docker,gjaskiewicz/moby,danyalKhaliq10p/moby,allencloud/docker,shishir-a412ed/docker,konstruktoid/docker-1,rancher/docker,Ramzec/docker,danyalKhaliq10p/moby,bonczj/moby-json-file-logger,ColinHebert/docker,moul/docker,srust/docker,konstruktoid/docker-upstream,q384566678/docker,yasiramin10p/moby,thaJeztah/docker,srust/docker,dmcgowan/docker,michael-holzheu/docker,djs55/docker,imkin/moby,paralin/docker,kencochrane/docker,SvenDowideit/docker,ffoysal/docker,yummypeng/docker,ibuildthecloud/docker,moby/moby,prertik/docker,xuxinkun/docker,laijs/moby,lixiaobing10051267/docker,mixja/docker,JMesser81/docker,PatrickLang/moby,darrenstahlmsft/moby,nalind/docker,Ramzec/docker,fcrisciani/docker,harche/docker,docker/docker,tianon/docker,harche/docker,Mokolea/docker,cyphar/docker,x1022as/docker,trebonian/docker,miminar/docker,maxamillion/docker,cpuguy83/docker,jvanz/docker,yosifkit/docker,haveatry/docker,jvanz/docker,thaJeztah/docker,mkumatag/docker,unclejack/docker,liaoqingwei/docker,duglin/docker,lixiaobing10051267/docker,ndeloof/docker,pradipd/moby,YuPengZTE/docker,docker/docker,akira-baruah/docker,akira-baruah/docker,prertik/docker,prertik/docker,laijs/docker,laijs/moby,jlhawn/docker,sarnautov/moby,mahak/docker,mkumatag/docker,jimjag/docker,coreos/docker,jameszhan/docker,maxamillion/docker,nawawi/docker,noironetworks/docker,noironetworks/docker,SvenDowideit/docker,dsheets/moby,madhanrm/docker,tophj-ibm/docker,mixja/docker,kolyshkin/docker,tklauser/docker,flavio/docker,erikh/docker,hqhq/moby,tonistiigi/docker,tmp6154/docker,dmcgowan/docker,coreos/docker,alfred-landrum/docker,mikebrow/docker,mkumatag/docker,yosifkit/docker,miminar/docker,moby/moby,estesp/docker,rhatdan/docker,PatrickLang/moby,kojiromike/docker,erikstmartin/docker,laijs/docker,konstruktoid/docker-upstream,KingEmet/docker,konstruktoid/docker-upstream,whuwxl/docker,bearstech/moby,darrenstahlmsft/docker,shishir-a412ed/docker,nalind/docker,mstanleyjones/docker,hqhq/moby,AkihiroSuda/docker,konstruktoid/docker-1,q384566678/docker,paralin/docker,erikh/docker,ibuildthecloud/docker,sterchelen/docker,raja-sami-10p/moby,amatsus/docker,catinthesky/docker,thaJeztah/docker,whuwxl/docker,tonistiigi/docker,x1022as/docker,mstanleyjones/docker,liaoqingwei/docker,thtanaka/docker,jwhonce/docker,ColinHebert/docker,yongtang/docker,shhsu/docker,scotttlin/docker,bonczj/moby-json-file-logger,tophj-ibm/docker,rancher/docker,moypray/docker,tianon/docker,mahak/docker,coolljt0725/docker,KarthikNayak/docker,PatrickLang/moby,shishir-a412ed/docker,bearstech/moby,sterchelen/docker,hqhq/moby,catinthesky/docker,sdurrheimer/docker,x1022as/docker,ffoysal/docker,yasiramin10p/moby,jlhawn/docker,vdemeester/docker,POLJM242/docker,duglin/docker,SvenDowideit/docker,kencochrane/docker,srust/docker,thtanaka/docker,thtanaka/docker,Mokolea/docker,JMesser81/docker,kojiromike/docker,kojiromike/docker,cyphar/docker,resin-io/docker,moul/docker,johnstep/moby-moby,djs55/docker,coolljt0725/docker,harche/docker,dsheets/moby,tonistiigi/docker,raja-sami-10p/moby,ripcurld0/moby,allencloud/docker,bearstech/moby,KarthikNayak/docker,YuPengZTE/docker,liaoqingwei/docker,moby/moby,laijs/moby,dims/docker,ibuildthecloud/docker,jlhawn/docker,charleszheng44/moby,pramodhkp/moby,nawawi/docker,cyphar/docker,docker/docker,yummypeng/docker,alfred-landrum/docker,charleszheng44/moby,mike1729/docker,rhatdan/docker,johnstep/moby-moby,bearstech/moby,yosifkit/docker,dsheets/moby,gnailuy/docker,madhanrm/docker,mikedougherty/docker,coolljt0725/docker,catinthesky/docker,q384566678/docker,dperny/docker,mtesselH/docker,nalind/docker,noironetworks/docker,yasiramin10p/moby,scotttlin/docker,trebonian/docker,mixja/docker,mtesselH/docker,scotttlin/docker,mikebrow/docker,darrenstahlmsft/docker,pradipd/moby,unclejack/docker,rremer/moby,naveed-jamil-tenpearls/moby,jameszhan/docker,michael-holzheu/docker,sterchelen/docker,darrenstahlmsft/moby,alfred-landrum/docker,crosbymichael/docker,jvanz/docker,tmp6154/docker,sarnautov/moby,michael-holzheu/docker,ndeloof/docker,qudongfang/docker,dgageot/docker,mike1729/docker,kolyshkin/moby,qudongfang/docker,johnstep/moby-moby,dgageot/docker,ripcurld0/moby,resin-io/docker,ffoysal/docker,YuPengZTE/docker,amatsus/docker,diogomonica/docker,ripcurld0/moby,erikh/docker,flavio/docker,HideoYamauchi/docker,justincormack/docker,Mokolea/docker,sdurrheimer/docker,danyalKhaliq10p/moby,jthelin/docker,mstanleyjones/docker,AkihiroSuda/docker,dims/docker,kolyshkin/moby,gschaetz/moby,Mokolea/docker,cpuguy83/docker,mikedougherty/docker,madhanrm/docker,justincormack/docker,haveatry/docker,paralin/docker,xuxinkun/docker,tophj-ibm/moby,jwhonce/docker,maxamillion/docker,shhsu/docker,flavio/docker,cpuguy83/docker,unclejack/docker,gschaetz/moby,cpuguy83/docker,mikedougherty/docker,moypray/docker,laijs/docker,mike1729/docker,lixiaobing1/docker,dims/docker,rhatdan/docker,Syntaxide/docker,vdemeester/docker,ndeloof/docker,Syntaxide/docker,POLJM242/docker,gschaetz/moby,dperny/docker,imkin/moby,fcrisciani/docker,gjaskiewicz/moby,AkihiroSuda/docker,charleszheng44/moby,naveed-jamil-tenpearls/moby,pramodhkp/moby,rremer/moby,kencochrane/docker