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-mux.c b/drivers/clk/clk-mux.c
index f1becd2..fd746f2 100644
--- a/drivers/clk/clk-mux.c
+++ b/drivers/clk/clk-mux.c
@@ -24,14 +24,15 @@
 #include <common.h>
 #include <clk.h>
 #include <clk-uclass.h>
+#include <malloc.h>
+#include <asm/io.h>
 #include <dm/device.h>
 #include <dm/devres.h>
 #include <dm/uclass.h>
 #include <linux/bitops.h>
-#include <malloc.h>
-#include <asm/io.h>
 #include <linux/clk-provider.h>
 #include <linux/err.h>
+
 #include "clk.h"
 
 #define UBOOT_DM_CLK_CCF_MUX "ccf_clk_mux"