net/bnxt: update VNIC related structures

net/bnxt: update VNIC related structures

Update the PMD to use VNIC related structures as per the 1.5.1 HWRM API.
Most of the changes in the patch are white spaces and rearrangement of the
lines - a onetime change owing to the usage of a different
auto generated file.

Structures being updated:
hwrm_vnic_alloc_input, hwrm_vnic_alloc_output, hwrm_vnic_free_input,
hwrm_vnic_free_output, hwrm_vnic_cfg_input, hwrm_vnic_cfg_output,
hwrm_vnic_rss_cfg_input, hwrm_vnic_rss_cfg_output,
hwrm_vnic_rss_cos_lb_ctx_alloc_input,
hwrm_vnic_rss_cos_lb_ctx_alloc_output,
hwrm_vnic_rss_cos_lb_ctx_free_input,
hwrm_vnic_rss_cos_lb_ctx_free_output

Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>