Add new line after printing non-zero GBB flags.

Callers of vboot might print some additional information in
VbExDisplayDebugInfo(). Add a new line to the end of the buffer
so that output is aligned with the normal <tab> information.

BUG=none
TEST=set gbb flags to 1, see cursor go to next line at dev screen.

Reviewed-on: https://gerrit.chromium.org/gerrit/17001
Tested-by: Stefan Reinauer <reinauer@chromium.org>
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Commit-Ready: Stefan Reinauer <reinauer@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>

(cherry picked from commit 5ee257d94cb8aab2f3717c5cd4ceb37fbba3ec41)

Change-Id: I49aa04900ac34d76213a49d00b97f13ad22f5d58
Reviewed-on: https://gerrit.chromium.org/gerrit/17008
Tested-by: Stefan Reinauer <reinauer@chromium.org>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
diff --git a/firmware/lib/vboot_display.c b/firmware/lib/vboot_display.c
index 5e705c7..3649fd1 100644
--- a/firmware/lib/vboot_display.c
+++ b/firmware/lib/vboot_display.c
@@ -321,6 +321,7 @@
     used += Strncat(outbuf + used, "gbb.flags is nonzero: 0x",
                     OUTBUF_LEN - used);
     used += Uint64ToString(outbuf + used, OUTBUF_LEN - used, gbb->flags, 16, 8);
+    used += Strncat(outbuf + used, "\n", OUTBUF_LEN - used);
     (void)VbExDisplayDebugInfo(outbuf);
   }