wifi: rtl8xxxu: Fix LED control code of RTL8192FU

Some devices, like the Comfast CF-826F, use LED1, which already works.
Others, like Asus USB-N13 C1, use LED0, which doesn't work correctly.

Write the right values to the LED control registers to make LED0 work
as well.

This is unfortunately tested only with the Comfast CF-826F.

Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/7a2c3158-3a45-4466-b11e-fc09802b20e2@gmail.com