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/usb/musb-new/musb_host.c b/drivers/usb/musb-new/musb_host.c
index b98f0ed..5fa0136 100644
--- a/drivers/usb/musb-new/musb_host.c
+++ b/drivers/usb/musb-new/musb_host.c
@@ -23,6 +23,7 @@
 #else
 #include <common.h>
 #include <usb.h>
+#include <linux/bug.h>
 #include "linux-compat.h"
 #include "usb-compat.h"
 #endif