CONFIG_SENSORS_AK8975 was renamed to CONFIG_AK8975 in commit
2fc72cd8 ("iio:magnetometer:ak8975 move driver out of staging")
in v3.10.
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>