Current code use dm_gpio_get_value() to get SDA and SCL value, and the
value depends on whether DTS file config the GPIO_ACTIVE_LOW. In ususal
case for i2c GPIO, DTS need to set GPIO_ACTIVE_LOW for SCL/SDA pins. So
here the logic is not correct.
And we must not use GPIOD_ACTIVE_LOW in client code include the
dm_gpio_set_dir_flags(), it is DTS's responsibility for this flag. So
remove GPIOD_ACTIVE_LOW here.