rtw89: ser: configure D-MAC interrupt mask

These interrupts are used by firmware to recover hardware. Create
functions to set specific D-MAC masks to replace plain register settings.

Signed-off-by: Chia-Yuan Li <leo.li@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/20220408001353.17188-3-pkshih@realtek.com