common: Drop log.h from common header

Move this header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>

env/common.c

@@ -12,6 +12,7 @@
 #include <command.h>
 #include <env.h>
 #include <env_internal.h>
+#include <log.h>
 #include <sort.h>
 #include <linux/stddef.h>
 #include <search.h>