common: Drop log.h from common header

Move this 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 6a3ad6a..272f6d5 100644
--- a/drivers/fpga/socfpga_arria10.c
+++ b/drivers/fpga/socfpga_arria10.c
@@ -3,6 +3,7 @@
  * Copyright (C) 2017-2019 Intel Corporation <www.intel.com>
  */
 #include <image.h>
+#include <log.h>
 #include <asm/io.h>
 #include <asm/arch/fpga_manager.h>
 #include <asm/arch/reset_manager.h>