ARM: moxart: move fixed rate clock child node to board level dts

When a skeleton "clocks { .. }" remain in .dtsi, the child node can
be moved to .dts, "ref12" is then found by of_clk_get().
Signed-off-by: NJonas Jensen <jonas.jensen@gmail.com>
Signed-off-by: NOlof Johansson <olof@lixom.net>

arch/arm/boot/dts/moxart-uc7112lx.dts

@@ -17,6 +17,14 @@ memory {
 		reg = <0x0 0x2000000>;
 	};
 
+	clocks {
+		ref12: ref12M {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <12000000>;
+		};
+	};
+
 	flash@80000000,0 {
 		compatible = "numonyx,js28f128", "cfi-flash";
 		reg = <0x80000000 0x1000000>;

arch/arm/boot/dts/moxart.dtsi

@@ -26,12 +26,6 @@ cpu@0 {
 	clocks {
 		#address-cells = <1>;
 		#size-cells = <0>;
-
-		ref12: ref12M {
-			compatible = "fixed-clock";
-			#clock-cells = <0>;
-			clock-frequency = <12000000>;
-		};
 	};
 
 	soc {