staging:iio: Move adxrs450 driver out of staging

The adxrs450 is in a reasonable shape now. It follows the IIO ABI and non of the
standard code checker tools report any issue, so move it out of staging.

Signed-off-by: Lars-Peter Clausen <[e-mail]>
Signed-off-by: Jonathan Cameron <[e-mail]>

drivers/iio/gyro/Kconfig

···
 	  Say yes here to build support for the Analog Devices ADIS16133, ADIS16135,
 	  ADIS16136 gyroscope devices.
 
+config ADXRS450
+	tristate "Analog Devices ADXRS450/3 Digital Output Gyroscope SPI driver"
+	depends on SPI
+	help
+	  Say yes here to build support for Analog Devices ADXRS450 and ADXRS453
+	  programmable digital output gyroscope.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called adxrs450.
+
 config HID_SENSOR_GYRO_3D
 	depends on HID_SENSOR_HUB
 	select IIO_BUFFER

drivers/iio/gyro/Makefile

···
 
 obj-$(CONFIG_ADIS16080) += adis16080.o
 obj-$(CONFIG_ADIS16136) += adis16136.o
+obj-$(CONFIG_ADXRS450) += adxrs450.o
+
 obj-$(CONFIG_HID_SENSOR_GYRO_3D) += hid-sensor-gyro-3d.o
 
 obj-$(CONFIG_IIO_ST_GYRO_3AXIS) += st_gyro.o

drivers/staging/iio/gyro/Kconfig

···
 	  This driver can also be built as a module.  If so, the module
 	  will be called adis16260.
 
-config ADXRS450
-	tristate "Analog Devices ADXRS450/3 Digital Output Gyroscope SPI driver"
-	depends on SPI
-	help
-	  Say yes here to build support for Analog Devices ADXRS450 and ADXRS453
-	  programmable digital output gyroscope.
-
-	  This driver can also be built as a module.  If so, the module
-	  will be called adxrs450.
-
 endmenu

drivers/staging/iio/gyro/Makefile

···
 
 adis16260-y             := adis16260_core.o
 obj-$(CONFIG_ADIS16260) += adis16260.o
-
-obj-$(CONFIG_ADXRS450) += adxrs450.o