lib: Add SG2044 CPPC support

Signed-off-by: haijiao.liu <haijiao.liu@sophgo.com>

include/sbi_utils/clk/fdt_clk.h

@@ -0,0 +1,26 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2025 Sophgo Inc.
+ *
+ * Authors:
+ *   Haijiao Liu <haijiao.liu@sophgo.com>
+ */
+
+#ifndef __FDT_CLK_H__
+#define __FDT_CLK_H__
+
+#include <sbi/sbi_types.h>
+#include <sbi_utils/fdt/fdt_driver.h>
+
+#ifdef CONFIG_FDT_CLK
+
+void fdt_clk_init(const void *fdt);
+
+#else
+
+static inline void fdt_clk_init(const void *fdt) { }
+
+#endif
+
+#endif