ceph.spec.in: ceph-common subpackage def needs tweaking for SUSE/openSUSE
SUSE/openSUSE needs python-argparse and redhat-lsb-core is only
needed in RHEL/CentOS/Fedora.
ceph.spec.in: tweak ceph-common for SUSE/openSUSE
ceph-common needs python-argparse in SUSE/openSUSE and
needs redhat-lsb-core only in RHEL/CentOS/Fedora.
Signed-off-by: Nathan Cutler <email@example.com>
(cherry picked from commit 363d957d8fdd15a1674befbd8e485fd89b76d716)