rtw89: disabled IGI configuration for unsupported hardware

Bypass IGI, known as Rx gain, adjustment flow for incompatible hardware
architectures.

Signed-off-by: Johnson Lin <johnson.lin@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/20220318023214.32411-7-pkshih@realtek.com