ARM: dts: sun7i: Change clock node names to avoid warnings

Our oscillators clock names have a unit address, but no reg property, which
generates a warning in DTC. Change these names to remove those unit
addresses.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>

arch/arm/boot/dts/sun7i-a20.dtsi

@@ -205,14 +205,14 @@ clocks {
 		#size-cells = <1>;
 		ranges;
 
-		osc24M: clk@1c20050 {
+		osc24M: clk-24M {
 			#clock-cells = <0>;
 			compatible = "fixed-clock";
 			clock-frequency = <24000000>;
 			clock-output-names = "osc24M";
 		};
 
-		osc32k: clk@0 {
+		osc32k: clk-32k {
 			#clock-cells = <0>;
 			compatible = "fixed-clock";
 			clock-frequency = <32768>;
@@ -228,14 +228,14 @@ osc32k: clk@0 {
 		 * The actual TX clock rate is not controlled by the
 		 * gmac_tx clock.
 		 */
-		mii_phy_tx_clk: clk@1 {
+		mii_phy_tx_clk: clk-mii-phy-tx {
 			#clock-cells = <0>;
 			compatible = "fixed-clock";
 			clock-frequency = <25000000>;
 			clock-output-names = "mii_phy_tx";
 		};
 
-		gmac_int_tx_clk: clk@2 {
+		gmac_int_tx_clk: clk-gmac-int-tx {
 			#clock-cells = <0>;
 			compatible = "fixed-clock";
 			clock-frequency = <125000000>;