qemu-char: Fix chardev "memory" not to drop IAC characters Undocumented misfeature, get rid of it while we can. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>