[][Refine QDMA Per-Port-Per-Queue(PPPQ) mode]

[Description]
Refactor QDMA Per-Port-Per-Queue(PPPQ) mode:
	- Discard legacy CONFIG_NET_MEDIATEK_HW_QOS flag
	- Enable mtkhnat utility hqos=1 by default
	- Simplify qos_toggle command when enabling PPPQ

[Release-log]
N/A

Change-Id: Ia6ef6b7143af5f46d048525b931d02e2f81ded19
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/5308043
diff --git a/target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_hnat/nf_hnat_mtk.h b/target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_hnat/nf_hnat_mtk.h
index 0493337..96bbe06 100644
--- a/target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_hnat/nf_hnat_mtk.h
+++ b/target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_hnat/nf_hnat_mtk.h
@@ -57,12 +57,8 @@
 } __packed;
 #endif
 
-#if defined(CONFIG_NET_MEDIATEK_HW_QOS)
 #define HQOS_MAGIC_TAG 0x5678
-#define HAS_HQOS_MAGIC_TAG(skb) (skb->protocol == HQOS_MAGIC_TAG)
-#else
-#define HAS_HQOS_MAGIC_TAG(skb) NULL
-#endif
+#define HAS_HQOS_MAGIC_TAG(skb) (qos_toggle && skb->protocol == HQOS_MAGIC_TAG)
 
 #define HNAT_MAGIC_TAG 0x6789
 #define HNAT_INFO_FILLED 0x7