SchSeba / sriov-network-device-plugin / 20917891540

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Fix VFIO device path missing from env variables

The vfioInfoProvider was not including the VFIO device path
(e.g., /dev/vfio/162) in the environment variables because
GetEnvVal() was called before GetDeviceSpecs() during allocation.

The VFIO device file path was computed in GetDeviceSpecs() and stored
in vfioDevContainer, but since GetEnvVal() runs first in the Allocate()
flow, the field was always empty when building env vars.

Fix: Move the VFIO device file computation to the constructor
(NewVfioInfoProvider) so the values are available immediately for
both GetEnvVal() and GetDeviceSpecs() regardless of call order.

Before: {"vfio":{"mount":"/dev/vfio/vfio"}}
After:  {"vfio":{"mount":"/dev/vfio/vfio","dev-mount":"/dev/vfio/162"}}

Signed-off-by: Author <author@example.com>

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