Revert "mt76: mt76x0e: don't use hw encryption for MT7630E"

This reverts commit 34b0e9b7.

Since commit 7bd0650b ("mt76: dma: fix buffer unmap with non-linear skbs")
is no longer necessary to disable HW encryption for MT7630E.

Disabling HW encryption helped previously because somehow fragmented
skb's are not created if mac80211 encrypt frames, so buffer unmap bug
of non-linear skbs was not triggered. Now since this bug is properly
fixed by commit 7bd0650b ("mt76: dma: fix buffer unmap with
non-linear skbs") , we can enable HW encryption back.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt76x0/pci.c

@@ -51,19 +51,6 @@ static void mt76x0e_stop(struct ieee80211_hw *hw)
 	mt76x0e_stop_hw(dev);
 }
 
-static int
-mt76x0e_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
-		struct ieee80211_vif *vif, struct ieee80211_sta *sta,
-		struct ieee80211_key_conf *key)
-{
-	struct mt76x02_dev *dev = hw->priv;
-
-	if (is_mt7630(dev))
-		return -EOPNOTSUPP;
-
-	return mt76x02_set_key(hw, cmd, vif, sta, key);
-}
-
 static void
 mt76x0e_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 	      u32 queues, bool drop)
@@ -80,7 +67,7 @@ static const struct ieee80211_ops mt76x0e_ops = {
 	.configure_filter = mt76x02_configure_filter,
 	.bss_info_changed = mt76x02_bss_info_changed,
 	.sta_state = mt76_sta_state,
-	.set_key = mt76x0e_set_key,
+	.set_key = mt76x02_set_key,
 	.conf_tx = mt76x02_conf_tx,
 	.sw_scan_start = mt76_sw_scan,
 	.sw_scan_complete = mt76x02_sw_scan_complete,