wifi: rtw89: mac: check queue empty according to chip gen

This function, currently called by WoWLAN flow, polls until specific HW
queues are empty. The polling bit definitions are not totally the same
between WiFi 6 and 7 chips. In addition, the check conditions are also
a little different. So, we differentiate the implementations according to
chip gen.

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20231124071703.132549-6-pkshih@realtek.com