arm64: dts: renesas: r9a07g044: Fix external clk node names

Add suffix '-clk' for can and extal clk node names and replace the
clk node names audio_clk{1,2} with audio{1,2}-clk as per the device
tree specification.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20220428133156.18080-1-biju.das.jz@bp.renesas.comSigned-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

arch/arm64/boot/dts/renesas/r9a07g044.dtsi

@@ -13,14 +13,14 @@ / {
 	#address-cells = <2>;
 	#size-cells = <2>;
 
-	audio_clk1: audio_clk1 {
+	audio_clk1: audio1-clk {
 		compatible = "fixed-clock";
 		#clock-cells = <0>;
 		/* This value must be overridden by boards that provide it */
 		clock-frequency = <0>;
 	};
 
-	audio_clk2: audio_clk2 {
+	audio_clk2: audio2-clk {
 		compatible = "fixed-clock";
 		#clock-cells = <0>;
 		/* This value must be overridden by boards that provide it */
@@ -28,14 +28,14 @@ audio_clk2: audio_clk2 {
 	};
 
 	/* External CAN clock - to be overridden by boards that provide it */
-	can_clk: can {
+	can_clk: can-clk {
 		compatible = "fixed-clock";
 		#clock-cells = <0>;
 		clock-frequency = <0>;
 	};
 
 	/* clock can be either from exclk or crystal oscillator (XIN/XOUT) */
-	extal_clk: extal {
+	extal_clk: extal-clk {
 		compatible = "fixed-clock";
 		#clock-cells = <0>;
 		/* This value must be overridden by the board */