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/board/armltd/vexpress64/pcie.c b/board/armltd/vexpress64/pcie.c
index 888434a..3285a33 100644
--- a/board/armltd/vexpress64/pcie.c
+++ b/board/armltd/vexpress64/pcie.c
@@ -7,6 +7,7 @@
 
 #include <common.h>
 #include <init.h>
+#include <log.h>
 #include <asm/io.h>
 #include <linux/bitops.h>
 #include <pci_ids.h>