bnxt_en: Zero pad firmware messages to 128 bytes.

bnxt_en: Zero pad firmware messages to 128 bytes.

Orabug: 23221795

For future compatibility, zero pad all messages that the driver sends
to the firmware to 128 bytes.  If these messages are extended in the
future with new byte enables, zero padding these messages now will
guarantee future compatibility.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit d79979a103f7820d3107cdc04096e87b37f90008)
Signed-off-by: Brian Maly <brian.maly@oracle.com>