common: Drop linux/delay.h from common header

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/board/armltd/integrator/pci.c b/board/armltd/integrator/pci.c
index 3ef5993..28efc33 100644
--- a/board/armltd/integrator/pci.c
+++ b/board/armltd/integrator/pci.c
@@ -25,6 +25,7 @@
 #include <pci.h>
 #include <asm/io.h>
 #include <linux/bug.h>
+#include <linux/delay.h>
 #include "integrator-sc.h"
 #include "pci_v3.h"
 
diff --git a/board/armltd/integrator/timer.c b/board/armltd/integrator/timer.c
index d701669..d220b87 100644
--- a/board/armltd/integrator/timer.c
+++ b/board/armltd/integrator/timer.c
@@ -19,6 +19,7 @@
 #include <common.h>
 #include <div64.h>
 #include <time.h>
+#include <linux/delay.h>
 
 #ifdef CONFIG_ARCH_CINTEGRATOR
 #define DIV_CLOCK_INIT	1
@@ -124,7 +125,7 @@
 }
 
 /* delay usec useconds */
-void __udelay (unsigned long usec)
+void __udelay(unsigned long usec)
 {
 	ulong tmo, tmp;