datapath-windows: cleanup InitHvVportCommon()

datapath-windows: cleanup InitHvVportCommon()

The workflow being implemented is that, we need to assign a special
name to the internal and external NICs, and it it not necessary to do
that from InitHvVportCommon(). The purpose of InitHvVportCommon() is to
insert the vport into the hash tables and update the switch context.

We special case the name assignment in HvCreateNIC() for
internal and external NICs. That seems more meaningful.

Also, reused HvCreatePort() to allocate a Vport for each of the external
NICs with NicIndex != 0. Due to this HvCreatePort() now takes 'nicIndex'
as an additional parameter.

Renamed InitHvVportCommon() to UpdateSwitchCtxWithVport().

Signed-off-by: Nithin Raju <nithin@vmware.com>
Acked-by: Sairam Venugopal <vsairam@vmware.com>
Acked-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
Signed-off-by: Gurucharan Shetty <guru@ovn.org>