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/cpu/cpu-uclass.c b/drivers/cpu/cpu-uclass.c
index 8352e2e..7418c26 100644
--- a/drivers/cpu/cpu-uclass.c
+++ b/drivers/cpu/cpu-uclass.c
@@ -8,6 +8,7 @@
 #include <cpu.h>
 #include <dm.h>
 #include <errno.h>
+#include <log.h>
 #include <dm/lists.h>
 #include <dm/root.h>
 #include <linux/err.h>