iio: light: stk3310: Update includes to match IWYU

Clean up the included headers in stk3310.c according to the
Include-What-You-Use (IWYU) tool. Remove the generic <linux/kernel.h>
header and add explicit dependencies to improve compilation accuracy.

Co-developed-by: Felipe Khoury Dayoub <felipedayoub@usp.br>
Signed-off-by: Felipe Khoury Dayoub <felipedayoub@usp.br>
Signed-off-by: Rafael G. Dias <rafael.guimaraes.dias@usp.br>
Reviewed-by: Joshua Crofts <joshua.crofts1@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

Author: Rafael G. Dias

drivers/iio/light/stk3310.c

@@ -7,16 +7,28 @@
  * IIO driver for STK3310/STK3311. 7-bit I2C address: 0x48.
  */
 
+#include <linux/array_size.h>
+#include <linux/bits.h>
+#include <linux/dev_printk.h>
+#include <linux/err.h>
 #include <linux/i2c.h>
 #include <linux/interrupt.h>
-#include <linux/kernel.h>
 #include <linux/mod_devicetable.h>
 #include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/pm.h>
+#include <linux/property.h>
 #include <linux/regmap.h>
+#include <linux/sprintf.h>
+#include <linux/sysfs.h>
+#include <linux/types.h>
 
 #include <linux/iio/events.h>
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
+#include <linux/iio/types.h>
+
+#include <asm/byteorder.h>
 
 #define STK3310_REG_STATE			0x00
 #define STK3310_REG_PSCTRL			0x01