rtw89: 8852c: correct register definitions used by 8852c

First one could affect SER because of false alarm event. Second one can
affect spur elimination.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220503120001.79272-7-pkshih@realtek.com