wifi: mt76: mt7996: fix the capability of reception of EHT MU PPDU

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

commit 2ffbdfc
Author: Howard Hsu <howard-yh.hsu@mediatek.com>
Date:   Tue Jan 14 18:10:19 2025 +0800

    wifi: mt76: mt7996: fix the capability of reception of EHT MU PPDU
    
    This commit includes two changes. First, enable "EHT MU PPDU With 4x
    EHT-LTF And 0.8us GI" in EHT Phy capabilities element since hardware
    can support. Second, fix the value of "Maximum number of supported
    EHT LTFs" in the same element, where the previous setting of 3 in
    Bit 3-4 was incorrect.
    
    Fixes: 348533e ("wifi: mt76: mt7996: add EHT capability init")
    Signed-off-by: Howard Hsu <howard-yh.hsu@mediatek.com>
    Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
    Link: https://patch.msgid.link/20250114101026.3587702-2-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

@@ -1352,21 +1352,20 @@ mt7996_init_eht_caps(struct mt7996_phy *phy, enum nl80211_band band,
 		IEEE80211_EHT_PHY_CAP3_CODEBOOK_7_5_MU_FDBK;
 
 	eht_cap_elem->phy_cap_info[4] =
+		IEEE80211_EHT_PHY_CAP4_EHT_MU_PPDU_4_EHT_LTF_08_GI |
 		u8_encode_bits(min_t(int, sts - 1, 2),
 			       IEEE80211_EHT_PHY_CAP4_MAX_NC_MASK);
 
 	eht_cap_elem->phy_cap_info[5] =
 		u8_encode_bits(IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US,
 			       IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK) |
-		u8_encode_bits(u8_get_bits(0x11, GENMASK(1, 0)),
+		u8_encode_bits(u8_get_bits(1, GENMASK(1, 0)),
 			       IEEE80211_EHT_PHY_CAP5_MAX_NUM_SUPP_EHT_LTF_MASK);
 
 	val = width == NL80211_CHAN_WIDTH_320 ? 0xf :
 	      width == NL80211_CHAN_WIDTH_160 ? 0x7 :
 	      width == NL80211_CHAN_WIDTH_80 ? 0x3 : 0x1;
 	eht_cap_elem->phy_cap_info[6] =
-		u8_encode_bits(u8_get_bits(0x11, GENMASK(4, 2)),
-			       IEEE80211_EHT_PHY_CAP6_MAX_NUM_SUPP_EHT_LTF_MASK) |
 		u8_encode_bits(val, IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_MASK);
 
 	val = u8_encode_bits(nss, IEEE80211_EHT_MCS_NSS_RX) |