net/ice: fix VLAN 0 adding based on VLAN mode

net/ice: fix VLAN 0 adding based on VLAN mode

In Single VLAN Mode, single VLAN filters via ICE_SW_LKUP_VLAN are based
on the inner VLAN ID, so the VLAN TPID (i.e. 0x8100 or 0x888a8) doesn't
matter.

In Double VLAN Mode, outer/single VLAN filters via ICE_SW_LKUP_VLAN are
based on the outer/single VLAN ID + VLAN TPID.

For both modes, adding a VLAN 0 + no VLAN TPID filter to handle untagged
traffic when VLAN pruning is enabled. Also, this handles VLAN 0 priority
tagged traffic in Single VLAN Mode, since the VLAN TPID is not part of
filtering.

If Double VLAN Mode is enabled then an explicit VLAN 0 + VLAN TPID filter
needs to be added to allow VLAN 0 priority tagged traffic in DVM, since
the VLAN TPID is part of filtering.

Fixes: 14e7a4b37b4f ("net/ice/base: support configuring device in double VLAN mode")

Signed-off-by: Haiyue Wang <haiyue.wang@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>