ARM: at91/dt: sama5d3 crystals under the clocks node

Having clocks grouped in a subnode is common practice, so move the crystals
under a clocks node for the sama5d3 SoC and sama5d3 based boards.
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>

arch/arm/boot/dts/at91-sama5d3_xplained.dts

@@ -21,12 +21,14 @@ memory {
 		reg = <0x20000000 0x10000000>;
 	};
 
-	slow_xtal {
-		clock-frequency = <32768>;
-	};
+	clocks {
+		slow_xtal {
+			clock-frequency = <32768>;
+		};
 
-	main_xtal {
-		clock-frequency = <12000000>;
+		main_xtal {
+			clock-frequency = <12000000>;
+		};
 	};
 
 	ahb {

arch/arm/boot/dts/sama5d3.dtsi

@@ -58,19 +58,19 @@ memory {
 		reg = <0x20000000 0x8000000>;
 	};
 
-	slow_xtal: slow_xtal {
-		compatible = "fixed-clock";
-		#clock-cells = <0>;
-		clock-frequency = <0>;
-	};
+	clocks {
+		slow_xtal: slow_xtal {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <0>;
+		};
 
-	main_xtal: main_xtal {
-		compatible = "fixed-clock";
-		#clock-cells = <0>;
-		clock-frequency = <0>;
-	};
+		main_xtal: main_xtal {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <0>;
+		};
 
-	clocks {
 		adc_op_clk: adc_op_clk{
 			compatible = "fixed-clock";
 			#clock-cells = <0>;

arch/arm/boot/dts/sama5d3xcm.dtsi

@@ -18,12 +18,14 @@ memory {
 		reg = <0x20000000 0x20000000>;
 	};
 
-	slow_xtal {
-		clock-frequency = <32768>;
-	};
+	clocks {
+		slow_xtal {
+			clock-frequency = <32768>;
+		};
 
-	main_xtal {
-		clock-frequency = <12000000>;
+		main_xtal {
+			clock-frequency = <12000000>;
+		};
 	};
 
 	ahb {