common: Drop linux/bug.h from common header

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/core/of_access.c b/drivers/core/of_access.c
index 710653b..922e78f 100644
--- a/drivers/core/of_access.c
+++ b/drivers/core/of_access.c
@@ -22,6 +22,7 @@
 #include <common.h>
 #include <log.h>
 #include <malloc.h>
+#include <linux/bug.h>
 #include <linux/libfdt.h>
 #include <dm/of_access.h>
 #include <linux/ctype.h>