Add CMD_CBW_320MHZ for setting bandwidth 320 MHz to firmware.
This is the preliminary patch to add EHT support for mt7996.
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
        CMD_CBW_10MHZ,
        CMD_CBW_5MHZ,
        CMD_CBW_8080MHZ,
+       CMD_CBW_320MHZ,
 
        CMD_HE_MCS_BW80 = 0,
        CMD_HE_MCS_BW160,
                [NL80211_CHAN_WIDTH_10] = CMD_CBW_10MHZ,
                [NL80211_CHAN_WIDTH_20] = CMD_CBW_20MHZ,
                [NL80211_CHAN_WIDTH_20_NOHT] = CMD_CBW_20MHZ,
+               [NL80211_CHAN_WIDTH_320] = CMD_CBW_320MHZ,
        };
 
        if (chandef->width >= ARRAY_SIZE(width_to_bw))