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/drivers/ddr/marvell/axp/ddr3_dfs.c b/drivers/ddr/marvell/axp/ddr3_dfs.c
index ba89959..b58c0fe 100644
--- a/drivers/ddr/marvell/axp/ddr3_dfs.c
+++ b/drivers/ddr/marvell/axp/ddr3_dfs.c
@@ -9,6 +9,7 @@
 #include <asm/io.h>
 #include <asm/arch/cpu.h>
 #include <asm/arch/soc.h>
+#include <linux/delay.h>
 
 #include "ddr3_hw_training.h"
 
diff --git a/drivers/ddr/marvell/axp/ddr3_hw_training.c b/drivers/ddr/marvell/axp/ddr3_hw_training.c
index 9dc911c..35d98fa 100644
--- a/drivers/ddr/marvell/axp/ddr3_hw_training.c
+++ b/drivers/ddr/marvell/axp/ddr3_hw_training.c
@@ -10,6 +10,7 @@
 #include <asm/io.h>
 #include <asm/arch/cpu.h>
 #include <asm/arch/soc.h>
+#include <linux/delay.h>
 
 #include "ddr3_init.h"
 #include "ddr3_hw_training.h"
diff --git a/drivers/ddr/marvell/axp/ddr3_init.c b/drivers/ddr/marvell/axp/ddr3_init.c
index 8e6d447..607f3e1 100644
--- a/drivers/ddr/marvell/axp/ddr3_init.c
+++ b/drivers/ddr/marvell/axp/ddr3_init.c
@@ -10,6 +10,7 @@
 #include <asm/io.h>
 #include <asm/arch/cpu.h>
 #include <asm/arch/soc.h>
+#include <linux/delay.h>
 
 #include "ddr3_init.h"
 
diff --git a/drivers/ddr/marvell/axp/ddr3_pbs.c b/drivers/ddr/marvell/axp/ddr3_pbs.c
index e44f08d..069a42fb 100644
--- a/drivers/ddr/marvell/axp/ddr3_pbs.c
+++ b/drivers/ddr/marvell/axp/ddr3_pbs.c
@@ -9,6 +9,7 @@
 #include <asm/io.h>
 #include <asm/arch/cpu.h>
 #include <asm/arch/soc.h>
+#include <linux/delay.h>
 
 #include "ddr3_hw_training.h"
 
diff --git a/drivers/ddr/marvell/axp/ddr3_write_leveling.c b/drivers/ddr/marvell/axp/ddr3_write_leveling.c
index 2061489..d4add44 100644
--- a/drivers/ddr/marvell/axp/ddr3_write_leveling.c
+++ b/drivers/ddr/marvell/axp/ddr3_write_leveling.c
@@ -10,6 +10,7 @@
 #include <asm/io.h>
 #include <asm/arch/cpu.h>
 #include <asm/arch/soc.h>
+#include <linux/delay.h>
 
 #include "ddr3_hw_training.h"