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>
diff --git a/arch/arm/boot/dts/at91-sama5d3_xplained.dts b/arch/arm/boot/dts/at91-sama5d3_xplained.dts
index 5b8e404..fec1fca 100644
--- a/arch/arm/boot/dts/at91-sama5d3_xplained.dts
+++ b/arch/arm/boot/dts/at91-sama5d3_xplained.dts
@@ -21,12 +21,14 @@
 		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 {