display_wipe_message: Use shorter SPINNER_INTERVAL for use VT2

The original interval is too long for using VT2 with frecon. This CL
changes the interval by passing the variable for display_boot_message.

This CL also fixed a small bug when showing fail message.

BUG=chrome-os-partner:51605
TEST=Manually on Chell

Change-Id: I07d2c574d2eecdf3cd513ff90f8de4bb2f356a3e
Reviewed-on: https://chromium-review.googlesource.com/334593
Commit-Ready: Shun-Hsing Ou <shunhsingou@chromium.org>
Tested-by: Shun-Hsing Ou <shunhsingou@chromium.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
1 file changed