pmic: max77686 set the same compatible as in the kernel

This commit also updates the proper dts files.

Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/arm/dts/exynos4412-odroid.dts b/arch/arm/dts/exynos4412-odroid.dts
index 582f6e5..5507d9a 100644
--- a/arch/arm/dts/exynos4412-odroid.dts
+++ b/arch/arm/dts/exynos4412-odroid.dts
@@ -36,7 +36,7 @@
 		status = "okay";
 
 		max77686_pmic@09 {
-			compatible = "maxim,max77686_pmic";
+			compatible = "maxim,max77686";
 			interrupts = <7 0>;
 			reg = <0x09 0 0>;
 			#clock-cells = <1>;