Kukui: Correct eMMC source frequency

eMMC source clock frequency is 400MHZ in kukui board.

BRANCH=None
BUG=b:80501386
TEST=Boots correctly on Kukui

Change-Id: I6a8b4eed80b045e980423abb426da74841ad9fd7
Signed-off-by: Jimin Wang <jimin.wang@mediatek.com>
Reviewed-on: https://chromium-review.googlesource.com/1524805
Commit-Ready: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
1 file changed