wifi: rtw89: add H2C RA command V1 to support WiFi 7 chips

H2C RA V1 command adds two words to support WiFi 7 chips, which can
possibly support up to 4SS rates. Because current chips have only 2SS
rates, leave the fields blank for now. The main changes are to set
extended bits of EHT mode and bandwidth -- add a bit for EHT mode; add a
bit to enumerate 320MHz channel bandwidth.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230728070252.66525-6-pkshih@realtek.com