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/misc/p2sb_emul.c b/drivers/misc/p2sb_emul.c
index 02f7a7e..a4b6dba 100644
--- a/drivers/misc/p2sb_emul.c
+++ b/drivers/misc/p2sb_emul.c
@@ -12,6 +12,7 @@
 #include <common.h>
 #include <axi.h>
 #include <dm.h>
+#include <log.h>
 #include <pci.h>
 #include <asm/test.h>
 #include <p2sb.h>