dt-bindings:iio:health:maxim,max30100: txt to yaml conversion

Straight forward conversion. As with other bindings I've dropped
any standrd description, but kept the unusual bits, in thisscase
the maxim,led-current-microamp and it's description.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Matt Ranostay <matt.ranostay@konsulko.com>
Link: https://lore.kernel.org/r/20201031184854.745828-10-jic23@kernel.org

Documentation/devicetree/bindings/iio/health/max30100.txt

-Maxim MAX30100 heart rate and pulse oximeter sensor
-
-* https://datasheets.maximintegrated.com/en/ds/MAX30100.pdf
-
-Required properties:
-  - compatible: must be "maxim,max30100"
-  - reg: the I2C address of the sensor
-  - interrupts: the sole interrupt generated by the device
-
-  Refer to interrupt-controller/interrupts.txt for generic
-  interrupt client node bindings.
-
-Optional properties:
-  - maxim,led-current-microamp: configuration for LED current in microamperes
-    while the engine is running. First indexed value is the configuration for
-    the RED LED, and second value is for the IR LED.
-
-    Refer to the datasheet for the allowed current values.
-
-Example:
-
-max30100@57 {
-	compatible = "maxim,max30100";
-	reg = <0x57>;
-	maxim,led-current-microamp = <24000 50000>;
-	interrupt-parent = <&gpio1>;
-	interrupts = <16 2>;
-};

Documentation/devicetree/bindings/iio/health/maxim,max30100.yaml

+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/health/maxim,max30100.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim MAX30100 heart rate and pulse oximeter sensor
+
+maintainers:
+  - Matt Ranostay <matt.ranostay@konsulko.com>
+
+properties:
+  compatible:
+    const: maxim,max30100
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+    description: Connected to ADC_RDY pin.
+
+  maxim,led-current-microamp:
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    minItems: 2
+    maxItems: 2
+    description: |
+      LED current whilst the engine is running. First indexed value is
+      the configuration for the RED LED, and second value is for the IR LED.
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        heart-rate@57 {
+            compatible = "maxim,max30100";
+            reg = <0x57>;
+            maxim,led-current-microamp = <24000 50000>;
+            interrupt-parent = <&gpio1>;
+            interrupts = <16 2>;
+        };
+    };
+...