wifi: rtw89: coex: Add TDMA slot parameter setting version 7

In order to packet up the slots information, the TLV header has updated.
TDMA slot parameters also use the TLV header to packet up to H2C, so
upgrade to version 7.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240312013721.17452-5-pkshih@realtek.com