common: Drop image.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/fpga/socfpga_arria10.c b/drivers/fpga/socfpga_arria10.c
index 2853581..6a3ad6a 100644
--- a/drivers/fpga/socfpga_arria10.c
+++ b/drivers/fpga/socfpga_arria10.c
@@ -2,6 +2,7 @@
 /*
  * Copyright (C) 2017-2019 Intel Corporation <www.intel.com>
  */
+#include <image.h>
 #include <asm/io.h>
 #include <asm/arch/fpga_manager.h>
 #include <asm/arch/reset_manager.h>