ixgbe: update driver version string

Update the ixgbe driver version string to better match the Source Driver
with similar device support.  Likewise update to the current LAD Linux
versioning scheme.

Signed-of-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Evan Swanson <evan.swanson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>