runqemu-internal: qemuarm enable usage of virtio devices

runqemu-internal: qemuarm enable usage of virtio devices

We are experiencing occasional segfaults in scsi sym53c8xx driver
on qemuarm boot. There are some old discussions into the mailing
lists [1] about the scsi problem and seems to be isn't fixed.

We use virtio blk/net devices into qemuarm64 also are supported
into qemuarm so change to use it because virtio devices are the best
choice.

[YOCTO #8060]

[1] https://bugzilla.yoctoproject.org/show_bug.cgi?id=8060#c10

Signed-off-by: Aníbal Limón <anibal.limon@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>