oci/caps: rename some vars that conflicted with imports / built-ins
oci/caps: rename some vars that conflicted with imports / built-ins

Signed-off-by: Sebastiaan van Stijn <64b2b6d12bfe4baae7dad3d018f8cbf6b0e7a044@gone.nl>

thaJeztah/docker,trebonian/docker,konstruktoid/docker-upstream,moul/docker,Ramzec/docker,bearstech/moby,moby/moby,Mokolea/docker,gnailuy/docker,flavio/docker,paralin/docker,nawawi/docker,yosifkit/docker,yosifkit/docker,thaJeztah/docker,cpuguy83/docker,nawawi/docker,jimjag/docker,bearstech/moby,trebonian/docker,flavio/docker,thaJeztah/docker,nawawi/docker,djs55/docker,cpuguy83/docker,vdemeester/docker,moby/moby,nawawi/docker,paralin/docker,yosifkit/docker,cpuguy83/docker,jimjag/docker,thaJeztah/docker,paralin/docker,gnailuy/docker,konstruktoid/docker-upstream,nalind/docker,trebonian/docker,moby/moby,flavio/docker,Ramzec/docker,cpuguy83/docker,Mokolea/docker,vdemeester/docker,bearstech/moby,nalind/docker,konstruktoid/docker-upstream,jthelin/docker,yosifkit/docker,moul/docker,jameszhan/docker,paralin/docker,jameszhan/docker,jameszhan/docker,djs55/docker,flavio/docker,Mokolea/docker,nalind/docker,Mokolea/docker,moul/docker,docker/docker,nalind/docker,gnailuy/docker,Ramzec/docker,bearstech/moby,konstruktoid/docker-upstream,Ramzec/docker,mahak/docker,mahak/docker,jimjag/docker,trebonian/docker,docker/docker,mahak/docker,moby/moby,vdemeester/docker,jimjag/docker,djs55/docker,moul/docker,jthelin/docker,mahak/docker,gnailuy/docker,docker/docker