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/arch/arm/mach-socfpga/freeze_controller.c b/arch/arm/mach-socfpga/freeze_controller.c
index d48aeec..561d340 100644
--- a/arch/arm/mach-socfpga/freeze_controller.c
+++ b/arch/arm/mach-socfpga/freeze_controller.c
@@ -8,6 +8,7 @@
 #include <asm/io.h>
 #include <asm/arch/clock_manager.h>
 #include <asm/arch/freeze_controller.h>
+#include <linux/delay.h>
 #include <linux/errno.h>
 
 static const struct socfpga_freeze_controller *freeze_controller_base =