ARM: uniphier: replace <common.h> with <linux/delay.h> in pll settings

The #include <common.h> was added for mdelay().  Later, the declaration
of mdelay was moved to <linux/delay.h> by commit 5bc516ed66 ("delay:
collect {m, n, u}delay declarations to include/linux/delay.h").

There is no need to include <common.h> now.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

arch/arm/mach-uniphier/clk/pll-ld11.c

@@ -4,7 +4,7 @@
  * SPDX-License-Identifier:	GPL-2.0+
  */
 
-#include <common.h>
+#include <linux/delay.h>
 #include <linux/io.h>
 
 #include "../init.h"

arch/arm/mach-uniphier/clk/pll-ld20.c

@@ -5,7 +5,7 @@
  * SPDX-License-Identifier:	GPL-2.0+
  */
 
-#include <common.h>
+#include <linux/delay.h>
 
 #include "../init.h"
 #include "../sc64-regs.h"