ARM: dts: omap4-droid4: Add CPCAP PMIC ADC configuration

Add CPCAP PMIC ADC configuration.

Cc: devicetree@vger.kernel.org
Cc: Marcel Partap <mpartap@gmx.net>
Cc: Michael Scott <michael.scott@linaro.org>
Reviewed-by: Sebastian Reichel <sre@kernel.org>
Tested-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/motorola-cpcap-mapphone.dtsi

@@ -19,6 +19,13 @@ cpcap: pmic@0 {
 		spi-max-frequency = <3000000>;
 		spi-cs-high;
 
+		cpcap_adc: adc {
+			compatible = "motorola,mapphone-cpcap-adc";
+			interrupts-extended = <&cpcap 8 0>;
+			interrupt-names = "adcdone";
+			#io-channel-cells = <1>;
+		};
+
 		cpcap_regulator: regulator {
 			compatible = "motorola,mapphone-cpcap-regulator";