mediatek: mt7623: import patch to fix flow offloading

Hardware flow offloading was reported to work when setting the right
version identifier. Import a patch from Frank Wunderlich doing that.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

target/linux/mediatek/patches-5.10/510-net-mediatek-add-flow-offload-for-mt7623.patch

@@ -0,0 +1,24 @@
+From 4823778b116c08e9c55dbc5b5042223289ea6a0c Mon Sep 17 00:00:00 2001
+From: Frank Wunderlich <frank-w@public-files.de>
+Date: Wed, 31 Mar 2021 15:34:37 +0200
+Subject: [PATCH] net: mediatek: add flow offload for mt7623
+
+mt7623 uses offload version 2 too
+
+tested on Bananapi-R2
+
+Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
+---
+ drivers/net/ethernet/mediatek/mtk_eth_soc.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+@@ -3272,6 +3272,7 @@ static const struct mtk_soc_data mt7623_
+ 	.hw_features = MTK_HW_FEATURES,
+ 	.required_clks = MT7623_CLKS_BITMAP,
+ 	.required_pctl = true,
++	.offload_version = 2,
+ };
+ 
+ static const struct mtk_soc_data mt7629_data = {