net/ice/base: fix Rx functionality for ethertype filters

net/ice/base: fix Rx functionality for ethertype filters

In the function ice_add_eth_mac(), there is a line that
hard-codes the filter info flag to TX. This is redundant
and inaccurate. That flag will be set by the calling
function that built the list of filters to add, and
hard-coding it eliminates the Rx functionality of this
code. The paired function ice_remove_eth_mac() does not
do this, making a mis-matched pair.

Fixes: 157d00901f97 ("net/ice/base: add functions for ethertype filter")
Cc: stable@dpdk.org
Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Signed-off-by: Leyi Rong <leyi.rong@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>