i40evf: Add longer wait after remove module

i40evf: Add longer wait after remove module

Orabug: 23176970

Upon module remove, wait a little longer after requesting a reset before
checking to see if the firmware responded. This change prevents double
resets when the firmware is busy.

Change-ID: Ieedc988ee82fac1f32a074bf4d9e4dba426bfa58
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
(cherry picked from commit 22ead37f8af83b4fa32c15cc21d3541e74661339)
Signed-off-by: Brian Maly <brian.maly@oracle.com>