install-deps,run-make-check: use ceph-libboost repo

install-deps,run-make-check: use ceph-libboost repo

ceph-libboost1.67 repo is setup to satisfy the libboost dependencies
used when building ceph. now it offers arm64 and amd64 builds for xenial.

* install-deps.sh: add ceph-libboost1.67 repo hosted on chacra if the
  building host does not have any of the listed ceph-libboost1.67
  packages installed
* run-make-check.sh: add "-DWITH_SYSTEM_BOOST=ON
  -DBOOST_ROOT=/opt/ceph" if include/boost/config.hpp is found
  under /opt/ceph

See-also: http://tracker.ceph.com/issues/25186
Signed-off-by: Kefu Chai <kchai@redhat.com>