task/install: move package list to top of file
task/install: move package list to top of file

Signed-off-by: Sage Weil <6dd34506bbd5e58221bbb3e4732d97c91f02277b@redhat.com>

SUSE/teuthology,zhouyuan/teuthology,caibo2014/teuthology,SUSE/teuthology,yghannam/teuthology,zhouyuan/teuthology,dreamhost/teuthology,ktdreyer/teuthology,tchaikov/teuthology,michaelsevilla/teuthology,ivotron/teuthology,ceph/teuthology,tchaikov/teuthology,yghannam/teuthology,SUSE/teuthology,caibo2014/teuthology,dmick/teuthology,robbat2/teuthology,ceph/teuthology,dreamhost/teuthology,robbat2/teuthology,t-miyamae/teuthology,dmick/teuthology,ktdreyer/teuthology,dmick/teuthology,michaelsevilla/teuthology,t-miyamae/teuthology,ivotron/teuthology