ARM: at91/dt: sam9x5 crystals under the clocks node

Having clocks grouped in a subnode is common practice, so move the crystals and
the ADC clock under a clocks node for the at91sam9x5 SoC and at91sam9x5 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/at91sam9x5.dtsi

@@ -52,22 +52,24 @@ memory {
 		reg = <0x20000000 0x10000000>;
 	};
 
-	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>;
+		};
 
-	adc_op_clk: adc_op_clk{
-		compatible = "fixed-clock";
-		#clock-cells = <0>;
-		clock-frequency = <5000000>;
+		adc_op_clk: adc_op_clk{
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <5000000>;
+		};
 	};
 
 	ahb {

arch/arm/boot/dts/at91sam9x5cm.dtsi

@@ -23,12 +23,14 @@ main_clock: clock@0 {
 		};
 	};
 
-	slow_xtal {
-		clock-frequency = <32768>;
-	};
+	clocks {
+		slow_xtal {
+			clock-frequency = <32768>;
+		};
 
-	main_xtal {
-		clock-frequency = <12000000>;
+		main_xtal {
+			clock-frequency = <12000000>;
+		};
 	};
 
 	ahb {