i40evf: Use le32_to_cpu before evaluating HW desc fields.

i40evf: Use le32_to_cpu before evaluating HW desc fields.

i40e hardware descriptor fields are in little-endian format. Driver
must use le32_to_cpu while evaluating these fields otherwise on
big-endian arch we end up evaluating incorrect values, cause errors
like:

i40evf 0001:04:02.0: Expected response 0 from PF, received 285212672
i40evf 0001:04:02.1: Expected response 0 from PF, received 285212672

Orabug: 25577233

Signed-off-by: Tushar Dave <tushar.n.dave@oracle.com>
Reviewed-by: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: Allen Pais <allen.pais@oracle.com>