ARM: dts: mmp2: Use symbolic names for audio clocks

These are slighly easier to read.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Link: https://lore.kernel.org/r/20210121034130.1381872-8-lkundrak@v3.sk'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/boot/dts/mmp2.dtsi

@@ -6,6 +6,7 @@
 
 #include <dt-bindings/clock/marvell,mmp2.h>
 #include <dt-bindings/power/marvell,mmp2.h>
+#include <dt-bindings/clock/marvell,mmp2-audio.h>
 
 / {
 	#address-cells = <1>;
@@ -243,7 +244,7 @@ sspa0: audio-controller@d42a0c00 {
 				interrupts = <2>;
 				clock-names = "audio", "bitclk";
 				clocks = <&soc_clocks MMP2_CLK_AUDIO>,
-					 <&audio_clk 1>;
+					 <&audio_clk MMP2_CLK_AUDIO_SSPA0>;
 				power-domains = <&soc_clocks MMP2_POWER_DOMAIN_AUDIO>;
 				#sound-dai-cells = <0>;
 				status = "disabled";
@@ -256,7 +257,7 @@ sspa1: audio-controller@d42a0d00 {
 				interrupts = <3>;
 				clock-names = "audio", "bitclk";
 				clocks = <&soc_clocks MMP2_CLK_AUDIO>,
-					 <&audio_clk 2>;
+					 <&audio_clk MMP2_CLK_AUDIO_SSPA1>;
 				power-domains = <&soc_clocks MMP2_POWER_DOMAIN_AUDIO>;
 				#sound-dai-cells = <0>;
 				status = "disabled";