dt-bindings: ingenic,x1000-cgu: Add audio clocks

Add bindings for audio-related clocks on the Ingenic X1000 SoC.

Acked-by: Krzysztof Kozlowski <[e-mail]>
Signed-off-by: Aidan MacDonald <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Stephen Boyd <[e-mail]>

include/dt-bindings/clock/ingenic,x1000-cgu.h

···
 #define X1000_CLK_PDMA			35
 #define X1000_CLK_EXCLK_DIV512	36
 #define X1000_CLK_RTC			37
+#define X1000_CLK_AIC			38
+#define X1000_CLK_I2SPLLMUX		39
+#define X1000_CLK_I2SPLL		40
+#define X1000_CLK_I2S			41
 
 #endif /* __DT_BINDINGS_CLOCK_X1000_CGU_H__ */