clk-provider: include clk-uclass.h

Because clk-provider use clk_ops, so let's include clk-uclass.h

Signed-off-by: Peng Fan <peng.fan@nxp.com>
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index f42df9b..522e73e 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -8,6 +8,7 @@
  */
 #ifndef __LINUX_CLK_PROVIDER_H
 #define __LINUX_CLK_PROVIDER_H
+#include <clk-uclass.h>
 
 static inline void clk_dm(ulong id, struct clk *clk)
 {