SPI class is using I2C Device

[caternuson]

class LSM9DS0_SPI(LSM9DS0):
    """Driver for the LSM9DS0 connected over SPI."""
    # pylint: disable=no-member
    def __init__(self, spi, xmcs, gcs):
        self._gyro_device = spi_device.I2CDevice(spi, gcs)
        self._xm_device = spi_device.I2CDevice(spi, xmcs)
super().__init__()

NOTE: same issue was fixed for LSM9DS1. There, the SPI settings for phase and polarity were also incorrect. Need to check those here also.

[caternuson]

Actually, may be moot. Item is discontinued. https://www.adafruit.com/product/2021

[ladyada]

it is disco'd but id like to still support it anyhow - it just went out of manufacture like this month and a lot of people have em

[caternuson]

Done by #11