dt-bindings: clock: spacemit: introduce i2s pre-clock to fix i2s clock

Previously, the K1 clock driver did not include the parent clocks of
the I2S sysclk.

Introduce pre-clock to fix I2S clock.

Otherwise, the I2S clock may not work as expected.

This patch adds their definitions to allow proper registration
in the driver and usage in the device tree.

Fixes: 1b72c59 ("clk: spacemit: Add clock support for SpacemiT K1 SoC")
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

Author: TroyMitchell911

include/dt-bindings/clock/spacemit,k1-syscon.h

@@ -77,6 +77,10 @@
 #define CLK_I2S_BCLK		30
 #define CLK_APB			31
 #define CLK_WDT_BUS		32
+#define CLK_I2S_153P6		33
+#define CLK_I2S_153P6_BASE	34
+#define CLK_I2S_SYSCLK_SRC	35
+#define CLK_I2S_BCLK_FACTOR	36
 
 /* MPMU resets */
 #define RESET_WDT		0