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/arch/arm/mach-socfpga/spl_gen5.c b/arch/arm/mach-socfpga/spl_gen5.c
index 6c9f453..91bc9df 100644
--- a/arch/arm/mach-socfpga/spl_gen5.c
+++ b/arch/arm/mach-socfpga/spl_gen5.c
@@ -6,6 +6,7 @@
 #include <common.h>
 #include <hang.h>
 #include <init.h>
+#include <log.h>
 #include <asm/io.h>
 #include <asm/u-boot.h>
 #include <asm/utils.h>