net: ethernet: mtk_eth_soc: fix wrong use of new helper function

In function mtk_foe_entry_set_vlan() the call to field accessor macro
FIELD_GET(MTK_FOE_IB1_BIND_VLAN_LAYER, entry->ib1)
has been wrongly replaced by
mtk_prep_ib1_vlan_layer(eth, entry->ib1)

Use correct helper function mtk_get_ib1_vlan_layer instead.

Reported-by: Chen Minqiang <ptpt52@gmail.com>
Fixes: 03a3180e ("net: ethernet: mtk_eth_soc: introduce flow offloading support for mt7986")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/YzBp+Kk04CFDys4L@makrotopia.org


Signed-off-by: Jakub Kicinski <kuba@kernel.org>