bnxt_en: Update firmware interface to 1.10.3.68

The main changes are:

1. HWRM_VNIC_UPDATE used to safely disable and enable an RX ring within
the VNIC.

2. New flag in HWRM_VNIC_QCAPS to indicate FW will do the proper flush
during HWRM_VNIC_UPDATE.

3. New flag in HWRM_FUNC_QCAPS to indicate that reservations for some
resources such as VNIC can be reduced.

4. New backing store memory types not used by the driver yet.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David Wei <dw@davidwei.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>