[][kernel][mt7988][eth][Change LRO DMA size for reducing memory usage]

[Description]
Change LRO DMA size for reducing memory usage.

[Release-log]
N/A


Change-Id: If64d20e8090a1c5a6fbe7fba9b6839156832ced6
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/8167702
diff --git a/target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_eth_soc.h b/target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_eth_soc.h
index fe8bdee..0e658b0 100644
--- a/target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+++ b/target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_eth_soc.h
@@ -52,7 +52,7 @@
 
 #define MTK_QRX_OFFSET		0x10
 
-#define MTK_HW_LRO_DMA_SIZE	512
+#define MTK_HW_LRO_DMA_SIZE	64
 
 #define	MTK_MAX_LRO_RX_LENGTH		(4096 * 3)
 #define	MTK_MAX_LRO_IP_CNT		2