ARM: uniphier: replace <common.h> with <linux/delay.h> where possible

The <common.h> includes too many headers.  Actually, these files
needed to include it for udelay() declaration.  Now we can replace
it with <linux/delay.h> thanks to commit 5bc516ed ("delay:
collect {m, n, u}delay declarations to include/linux/delay.h").

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

arch/arm/mach-uniphier/clk/dpll-sld8.c

@@ -5,7 +5,7 @@
  * 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-base-ld20.c

@@ -5,8 +5,9 @@
  * SPDX-License-Identifier:	GPL-2.0+
  */
 
-#include <common.h>
 #include <linux/bitops.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
 #include <linux/io.h>
 #include <linux/sizes.h>
 

arch/arm/mach-uniphier/clk/pll-ld4.c

@@ -5,7 +5,7 @@
  * 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-pro4.c

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