iio: imu: bmi160: make bmi160_regs const

Add const qualifier to struct bmi160_regs bmi160_regs[]. This is
read-only data so it can be made const.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250628-iio-const-data-18-v1-1-dad85ac392ae@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Author: dlech

drivers/iio/imu/bmi160/bmi160_core.c

@@ -161,7 +161,7 @@ struct bmi160_regs {
 	u8 pmu_cmd_suspend;
 };
 
-static struct bmi160_regs bmi160_regs[] = {
+static const struct bmi160_regs bmi160_regs[] = {
 	[BMI160_ACCEL] = {
 		.data	= BMI160_REG_DATA_ACCEL_XOUT_L,
 		.config	= BMI160_REG_ACCEL_CONFIG,