wifi: mt76: mt7996: add max mpdu len capability

JIRA: https://issues.redhat.com/browse/RHEL-79791

commit 1816ad9
Author: Peter Chiu <chui-hao.chiu@mediatek.com>
Date:   Tue Jan 14 18:10:18 2025 +0800

    wifi: mt76: mt7996: add max mpdu len capability
    
    Set max mpdu len to 11454 according to hardware capability.
    Without this patch, the max ampdu length would be 3895 and count not get
    expected performance.
    
    Fixes: 348533e ("wifi: mt76: mt7996: add EHT capability init")
    Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com>
    Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
    Link: https://patch.msgid.link/20250114101026.3587702-1-shayne.chen@mediatek.com
    Signed-off-by: Felix Fietkau <nbd@nbd.name>

Signed-off-by: Jose Ignacio Tornos Martinez <jtornosm@redhat.com>

Author: jtornosm

drivers/net/wireless/mediatek/mt76/mt7996/init.c

@@ -1307,7 +1307,9 @@ mt7996_init_eht_caps(struct mt7996_phy *phy, enum nl80211_band band,
 
 	eht_cap_elem->mac_cap_info[0] =
 		IEEE80211_EHT_MAC_CAP0_EPCS_PRIO_ACCESS |
-		IEEE80211_EHT_MAC_CAP0_OM_CONTROL;
+		IEEE80211_EHT_MAC_CAP0_OM_CONTROL |
+		u8_encode_bits(IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_11454,
+			       IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_MASK);
 
 	eht_cap_elem->phy_cap_info[0] =
 		IEEE80211_EHT_PHY_CAP0_NDP_4_EHT_LFT_32_GI |