iio: st_sensors: lsm9ds0: Don't use "proxy" headers

Update header inclusions to follow IWYU (Include What You Use)
principle.
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20240211201526.1518165-3-andy.shevchenko@gmail.comSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/iio/imu/st_lsm9ds0/st_lsm9ds0.h

@@ -4,9 +4,12 @@
 #ifndef ST_LSM9DS0_H
 #define ST_LSM9DS0_H
 
-struct iio_dev;
+struct device;
+struct regmap;
 struct regulator;
 
+struct iio_dev;
+
 struct st_lsm9ds0 {
 	struct device *dev;
 	const char *name;

drivers/iio/imu/st_lsm9ds0/st_lsm9ds0_core.c

@@ -7,10 +7,10 @@
  * Author: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
  */
 
-#include <linux/device.h>
+#include <linux/array_size.h>
+#include <linux/dev_printk.h>
 #include <linux/err.h>
 #include <linux/module.h>
-#include <linux/regmap.h>
 #include <linux/regulator/consumer.h>
 
 #include <linux/iio/common/st_sensors.h>

drivers/iio/imu/st_lsm9ds0/st_lsm9ds0_i2c.c

@@ -7,8 +7,10 @@
  * Author: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
  */
 
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/gfp_types.h>
 #include <linux/i2c.h>
-#include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/mod_devicetable.h>
 #include <linux/regmap.h>

drivers/iio/imu/st_lsm9ds0/st_lsm9ds0_spi.c

@@ -7,7 +7,9 @@
  * Author: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
  */
 
-#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/gfp_types.h>
 #include <linux/module.h>
 #include <linux/mod_devicetable.h>
 #include <linux/regmap.h>