Made master to authorize `CREATE_DISK` and `DESTROY_DISK` properly.
Made master to authorize `CREATE_DISK` and `DESTROY_DISK` properly.

This patch fixes a bug where the master does not respect the
authorization result for `CREATE_DISK` or`DESTROY_DISK`, causing
subsequent operations to drop if the authorization is denied.

Review: https://reviews.apache.org/r/69563

Gilbert88/mesos,reneploetz/mesos,jpeach/mesos,kaysoky/mesos,abudnik/mesos,gsantovena/mesos,dforsyth/mesos,jpeach/mesos,Gilbert88/mesos,jpeach/mesos,jpeach/mesos,gsantovena/mesos,jpeach/mesos,chhsia0/mesos,dforsyth/mesos,kaysoky/mesos,jpeach/mesos,Gilbert88/mesos,gsantovena/mesos,chhsia0/mesos,kaysoky/mesos,gsantovena/mesos,dforsyth/mesos,dforsyth/mesos,abudnik/mesos,reneploetz/mesos,reneploetz/mesos,reneploetz/mesos,kaysoky/mesos,dforsyth/mesos,dforsyth/mesos,gsantovena/mesos,kaysoky/mesos,jpeach/mesos,kaysoky/mesos,chhsia0/mesos,abudnik/mesos,chhsia0/mesos,chhsia0/mesos,reneploetz/mesos,gsantovena/mesos,reneploetz/mesos,Gilbert88/mesos,Gilbert88/mesos,gsantovena/mesos,reneploetz/mesos,chhsia0/mesos,Gilbert88/mesos,abudnik/mesos,kaysoky/mesos,abudnik/mesos,chhsia0/mesos,abudnik/mesos,dforsyth/mesos,Gilbert88/mesos,abudnik/mesos