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/video/tegra124/sor.c b/drivers/video/tegra124/sor.c
index 0d35a3e..49f33c1 100644
--- a/drivers/video/tegra124/sor.c
+++ b/drivers/video/tegra124/sor.c
@@ -14,6 +14,7 @@
 #include <asm/io.h>
 #include <asm/arch/clock.h>
 #include <asm/arch-tegra/dc.h>
+#include <linux/delay.h>
 #include "displayport.h"
 #include "sor.h"
 #include <linux/err.h>