[rdk-b][common][bsp][Refactor and sync kernel/wifi from Openwrt]

[Description]
Refactor and sync kernel/wifi from Openwrt

[Release-log]
N/A

diff --git a/recipes-kernel/linux-mt76/files/patches/1120-mt76-mt7915-initialize-wcid.patch b/recipes-kernel/linux-mt76/files/patches/1120-mt76-mt7915-initialize-wcid.patch
new file mode 100644
index 0000000..2172868
--- /dev/null
+++ b/recipes-kernel/linux-mt76/files/patches/1120-mt76-mt7915-initialize-wcid.patch
@@ -0,0 +1,26 @@
+From 7f7b35a036ad9b53f5a53a0728eb8a095eef5c8c Mon Sep 17 00:00:00 2001
+From: Sujuan Chen <sujuan.chen@mediatek.com>
+Date: Tue, 12 Jul 2022 13:56:07 +0800
+Subject: [PATCH 1120/1121] mt76 mt7915 initialize wcid
+
+Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com>
+---
+ mt7915/mac.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/mt7915/mac.c b/mt7915/mac.c
+index f0eefc6..7c11e28 100644
+--- a/mt7915/mac.c
++++ b/mt7915/mac.c
+@@ -965,7 +965,7 @@ mt7915_mac_tx_free(struct mt7915_dev *dev, void *data, int len)
+ 		 */
+ 		if (info & MT_TX_FREE_PAIR) {
+ 			struct mt7915_sta *msta;
+-			struct mt76_wcid *wcid;
++			struct mt76_wcid *wcid = NULL;
+ 			u16 idx;
+ 
+ 			idx = FIELD_GET(MT_TX_FREE_WLAN_ID, info);
+-- 
+2.18.0
+