clk: cosmetic: reorder include files

Reorder include files in the U-Boot expected order:

the common.h header should always be first,
followed by other headers in order,
then headers with directories,
then local files.

It is a preliminary step for next patch.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 1efb7fe..d1a9787 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -5,13 +5,13 @@
  */
 
 #include <common.h>
+#include <clk.h>
 #include <clk-uclass.h>
 #include <log.h>
 #include <dm/device.h>
 #include <dm/uclass.h>
 #include <dm/lists.h>
 #include <dm/device-internal.h>
-#include <clk.h>
 
 int clk_register(struct clk *clk, const char *drv_name,
 		 const char *name, const char *parent_name)