trusty-virtio: Add module parameter for default polling period

Android init can set module options when loading modules
with insmod but requires additional permissions to write
to /sys/devices paths. Add a module parameter for the vqueue
polling period that sets the default value at load time.

Bug: 394191072
Change-Id: I8193a1c5ef7dcc84afc66f94d791631cf6d4a182
Signed-off-by: Andrei Homescu <[email protected]>
1 file changed