dts: sensor: Add dts yaml bindings for the fxos8700 sensor

Adds dts yaml bindings for the fxos8700 sensor to allow the sensor
driver name, i2c driver name, and i2c address to be extracted from dts
instead of kconfig.

Signed-off-by: Maureen Helm <maureen.helm@nxp.com>

drivers/sensor/fxos8700/Kconfig

@@ -12,6 +12,8 @@ menuconfig FXOS8700
 	help
 	  Enable driver for the FXOS8700 accelerometer/magnetometer
 
+if !HAS_DTS_I2C_DEVICE
+
 config FXOS8700_NAME
 	string "Device name"
 	depends on FXOS8700
@@ -19,7 +21,7 @@ config FXOS8700_NAME
 
 config FXOS8700_I2C_NAME
 	string "I2C device name"
-	depends on FXOS8700 && !HAS_DTS_I2C
+	depends on FXOS8700
 	default I2C_0_NAME
 
 config FXOS8700_I2C_ADDRESS
@@ -31,6 +33,8 @@ config FXOS8700_I2C_ADDRESS
 	  The I2C slave address can be configured by the SA0 and SA1 input
 	  pins. This option should usually be set by the board defconfig.
 
+endif # !HAS_DTS_I2C_DEVICE
+
 config FXOS8700_WHOAMI
 	hex "WHOAMI value"
 	depends on FXOS8700

dts/bindings/sensor/nxp,fxos8700.yaml

@@ -0,0 +1,22 @@
+#
+# Copyright (c) 2018, NXP
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+---
+title: FXOS8700 6-axis accelerometer/magnetometer
+id: nxp,fxos8700
+version: 0.1
+
+description: >
+    This is a representation of the FXOS8700 6-axis accelerometer/magnetometer
+    sensor
+
+inherits:
+    !include i2c-device.yaml
+
+properties:
+    compatible:
+      constraint: "nxp,fxos8700"
+
+...