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/i2c/sh_i2c.c b/drivers/i2c/sh_i2c.c
index 5cc5095..f857307 100644
--- a/drivers/i2c/sh_i2c.c
+++ b/drivers/i2c/sh_i2c.c
@@ -11,6 +11,7 @@
 #include <i2c.h>
 #include <log.h>
 #include <asm/io.h>
+#include <linux/delay.h>
 
 DECLARE_GLOBAL_DATA_PTR;