iio: accel: bmi088: Fix alignment for DMA safety

____cacheline_aligned is insufficient guarantee for non-coherent DMA.
Switch to the updated IIO_DMA_MINALIGN definition.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-7-jic23@kernel.org

drivers/iio/accel/bmi088-accel-core.c

@@ -128,7 +128,7 @@ struct bmi088_accel_chip_info {
 struct bmi088_accel_data {
 	struct regmap *regmap;
 	const struct bmi088_accel_chip_info *chip_info;
-	u8 buffer[2] ____cacheline_aligned; /* shared DMA safe buffer */
+	u8 buffer[2] __aligned(IIO_DMA_MINALIGN); /* shared DMA safe buffer */
 };
 
 static const struct regmap_range bmi088_volatile_ranges[] = {