dt-bindings: iio: imu: bmi160: add regulators and mount-matrix

Add vdd-supply and vddio-supply support.
Add mount-matrix support.

Signed-off-by: Jonathan Albrieux <jonathan.albrieux@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Documentation/devicetree/bindings/iio/imu/bosch,bmi160.yaml

@@ -37,6 +37,15 @@ properties:
       set if the specified interrupt pin should be configured as
       open drain. If not set, defaults to push-pull.
 
+  vdd-supply:
+    description: provide VDD power to the sensor.
+
+  vddio-supply:
+    description: provide VDD IO power to the sensor.
+
+  mount-matrix:
+    description: an optional 3x3 mounting rotation matrix
+
 required:
   - compatible
   - reg
@@ -52,9 +61,14 @@ examples:
         bmi160@68 {
                 compatible = "bosch,bmi160";
                 reg = <0x68>;
+                vdd-supply = <&pm8916_l17>;
+                vddio-supply = <&pm8916_l6>;
                 interrupt-parent = <&gpio4>;
                 interrupts = <12 IRQ_TYPE_EDGE_RISING>;
                 interrupt-names = "INT1";
+                mount-matrix = "0", "1", "0",
+                               "-1", "0", "0",
+                               "0", "0", "1";
         };
     };
   - |