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/freescale/common/diu_ch7301.c b/board/freescale/common/diu_ch7301.c
index 7f11123..02a2718 100644
--- a/board/freescale/common/diu_ch7301.c
+++ b/board/freescale/common/diu_ch7301.c
@@ -12,6 +12,7 @@
 #include <common.h>
 #include <stdio_dev.h>
 #include <i2c.h>
+#include <linux/delay.h>
 
 #define I2C_DVI_INPUT_DATA_FORMAT_REG		0x1F
 #define I2C_DVI_PLL_CHARGE_CNTL_REG		0x33
diff --git a/board/freescale/common/idt8t49n222a_serdes_clk.c b/board/freescale/common/idt8t49n222a_serdes_clk.c
index faa7f87..bb3cdac 100644
--- a/board/freescale/common/idt8t49n222a_serdes_clk.c
+++ b/board/freescale/common/idt8t49n222a_serdes_clk.c
@@ -6,6 +6,7 @@
 
 #include "idt8t49n222a_serdes_clk.h"
 #include <log.h>
+#include <linux/delay.h>
 
 #define DEVICE_ID_REG		0x00
 
diff --git a/board/freescale/common/sys_eeprom.c b/board/freescale/common/sys_eeprom.c
index b342105..728245d 100644
--- a/board/freescale/common/sys_eeprom.c
+++ b/board/freescale/common/sys_eeprom.c
@@ -12,6 +12,7 @@
 #include <i2c.h>
 #include <init.h>
 #include <linux/ctype.h>
+#include <linux/delay.h>
 #include <u-boot/crc.h>
 
 #ifdef CONFIG_SYS_I2C_EEPROM_CCID
diff --git a/board/freescale/common/vid.c b/board/freescale/common/vid.c
index 0bad67e..ed0d9b4 100644
--- a/board/freescale/common/vid.c
+++ b/board/freescale/common/vid.c
@@ -17,6 +17,7 @@
 #else
 #include <asm/immap_85xx.h>
 #endif
+#include <linux/delay.h>
 #include "vid.h"
 
 int __weak i2c_multiplexer_select_vid_channel(u8 channel)