octeontx2-pf: Add additional check for MCAM rules

Due to hardware limitation, MCAM drop rule with
ether_type == 802.1Q and vlan_id == 0 is not supported. Hence rejecting
such rules.

Fixes: dce677da ("octeontx2-pf: Add vlan-etype to ntuple filters")
Signed-off-by: Suman Ghosh <sumang@marvell.com>
Link: https://lore.kernel.org/r/20230710103027.2244139-1-sumang@marvell.com


Signed-off-by: Paolo Abeni <pabeni@redhat.com>