dts: bindings: drv2605: Requires actuator-mode prop

Requires the actuator-mode property to be set as there is no safe
default value.

Signed-off-by: Ricardo Rivera-Matos <[email protected]>

Author: rriveramcrus

dts/bindings/haptics/ti,drv2605.yaml

@@ -11,6 +11,7 @@ include: i2c-device.yaml
 
 properties:
   actuator-mode:
+    required: true
     type: string
     enum:
       - "ERM"

tests/drivers/build_all/haptics/i2c.dtsi

@@ -11,4 +11,6 @@ drv2605@0 {
 	compatible = "ti,drv2605";
 	reg = <0x0>;
 	status = "okay";
+
+	actuator-mode = "LRA";
 };