dt-bindings:iio:magnetometer:bosch,bmc150_magn: txt to yaml conversion.

This describes the bindings for both stand along magnetometers and ones
which form part of a multi chip package.
Given original author hasn't been active remotely recently I've
put myself as maintainer for this one.  I would of course like to
hand this over to someone more appropriate so shout out if this is you!
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20201031184854.745828-26-jic23@kernel.org

Documentation/devicetree/bindings/iio/magnetometer/bmc150_magn.txt

-* Bosch BMC150 magnetometer sensor
-
-http://ae-bst.resource.bosch.com/media/products/dokumente/bmc150/BST-BMC150-DS000-04.pdf
-
-Required properties:
-
-  - compatible : should be one of:
-                 "bosch,bmc150_magn"
-                 "bosch,bmc156_magn"
-                 "bosch,bmm150"
-                 "bosch,bmm150_magn" (DEPRECATED, use bosch,bmm150)
-  - reg : the I2C address of the magnetometer
-
-Optional properties:
-
-  - interrupts : interrupt mapping for GPIO IRQ
-
-Example:
-
-bmc150_magn@12 {
-        compatible = "bosch,bmc150_magn";
-        reg = <0x12>;
-        interrupt-parent = <&gpio1>;
-        interrupts = <0 1>;
-};

Documentation/devicetree/bindings/iio/magnetometer/bosch,bmc150_magn.yaml

+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/magnetometer/bosch,bmc150_magn.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Bosch BMC150 magnetometer sensor
+
+maintainers:
+  - Jonathan Cameron <jic23@kernel.org>
+
+description: |
+  Supports a range of parts, some of which form part of a multi die
+  package that also contains other sensors.  The interface is independent
+  however, so a separate driver is used to support the magnetometer part.
+  Datasheet at:
+  http://ae-bst.resource.bosch.com/media/products/dokumente/bmc150/BST-BMC150-DS000-04.pdf
+
+properties:
+  compatible:
+    description:
+      Note the bmm150_magn is a deprecated compatible as this part contains only
+      a magnetometer.
+    enum:
+      - bosch,bmc150_magn
+      - bosch,bmc156_magn
+      - bosch,bmm150
+      - bosch,bmm150_magn
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        magnetometer@12 {
+            compatible = "bosch,bmc150_magn";
+            reg = <0x12>;
+            interrupt-parent = <&gpio1>;
+            interrupts = <0 1>;
+        };
+    };
+...