qa: install ceph-classic-osd and ceph-crimson-osd

qa: install ceph-classic-osd and ceph-crimson-osd

- qa/packages/packages.yaml: add ceph-osd and ceph-classic-osd to
  packages/packages.yaml, so that the "install" task can install
  ceph-classic-osd by default, this preserves the existing behavior.
- qa/suites/crimson-rados: install ceph-crimson-osd instead of
  ceph-classic-osd. adding them to exclude_packages and extra_packages
  to task.install allows us to customize the packages to be installed
  when performing the "install"
  task.
- qa/suites/crimson-rados-experimental: likewise.

Signed-off-by: Kefu Chai <k.chai@proxmox.com>