qemu-guest-agent: fix path of fsfreeze-hook (LP: #1820291)
- d/qemu-guest-agent.install: use correct path for fsfreeze-hook
- d/qemu-guest-agent.pre{rm|inst}/.postrm: special handling for mv_conffile since the new path is a directory in the old package version which can not be handled by mv_conffile.
Signed-off-by: Christian Ehrhardt christian.ehrhardt@canonical.com