ARM: ux500: add VCC and VIO regulators to STMPE IC

Add a VCC and VIO regulator supplies to the the STMPE expander
found on the STUIB UIB variants.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

arch/arm/boot/dts/ste-href-stuib.dtsi

@@ -42,6 +42,8 @@
 				interrupts = <26 IRQ_TYPE_EDGE_FALLING>;
 				interrupt-parent = <&gpio6>;
 				interrupt-controller;
+				vcc-supply = <&db8500_vsmps2_reg>;
+				vio-supply = <&db8500_vsmps2_reg>;
 
 				wakeup-source;
 				st,autosleep-timeout = <1024>;