dt-bindings: clock: Add GRF clock definition for RK3528

These clocks are for SD/SDIO tuning purpose and come with registers
in GRF syscon.

Signed-off-by: Yao Zi <ziyao@disroot.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250506092206.46143-2-ziyao@disroot.org
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

Author: ziyao233

include/dt-bindings/clock/rockchip,rk3528-cru.h

@@ -414,6 +414,12 @@
 #define MCLK_I2S2_2CH_SAI_SRC_PRE	402
 #define MCLK_I2S3_8CH_SAI_SRC_PRE	403
 #define MCLK_SDPDIF_SRC_PRE		404
+#define SCLK_SDMMC_DRV			405
+#define SCLK_SDMMC_SAMPLE		406
+#define SCLK_SDIO0_DRV			407
+#define SCLK_SDIO0_SAMPLE		408
+#define SCLK_SDIO1_DRV			409
+#define SCLK_SDIO1_SAMPLE		410
 
 /* scmi-clocks indices */
 #define SCMI_PCLK_KEYREADER		0