rtw89: Turn on CR protection of CMAC

CMAC is Control MAC, and this patch is to turn on CR (control registers)
protection.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220325060055.58482-12-pkshih@realtek.com