ASoC: dt-bindings: rt5682: Add DBVDD and LDO1-IN supplies

The rt5682 codec has two additional power supply pins, DBVDD and
LDO1_IN, that aren't currently described in the binding. Add them.

Signed-off-by: Nícolas F. R. A. Prado <[e-mail]>
Reviewed-by: Rob Herring <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

Documentation/devicetree/bindings/sound/rt5682.txt

···
 - VBAT-supply: phandle to the regulator supplying battery power through the
   VBAT pin. Either MICVDD or VBAT should be present.
 
+- DBVDD-supply: phandle to the regulator supplying I/O power through the DBVDD
+  pin.
+
+- LDO1-IN-supply: phandle to the regulator supplying power to the digital core
+  and charge pump through the LDO1_IN pin.
+
 Optional properties:
 
 - interrupts : The CODEC's interrupt output.
···
 
 	AVDD-supply = <&avdd_reg>;
 	MICVDD-supply = <&micvdd_reg>;
+	DBVDD-supply = <&dbvdd_reg>;
+	LDO1-IN-supply = <&ldo1_in_reg>;
 };