configs: qemu: put floppy IO ports into config

The qemu VM will have a floppy drive and we can not tell Qemu to not
emulate one. Now if the guest kernel has a driver for a floppy drive we
can get violations on "jailhouse enable". Of the shelf distro kernels
will have floppy support so we need to whitelist the floppy ports in the
qemu root cell config.

Signed-off-by: Henning Schild <henning.schild@siemens.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>