marvell: Update firmware to v14.66.27.p5

BUG=chrome-os-partner:14937
TEST=Associate to AP

Change-Id: I5946025e66113f2f6919a7ceca8aa58a1c56d575
Reviewed-on: https://gerrit.chromium.org/gerrit/37835
Reviewed-by: Stanley Wong <stanleyw@chromium.org>
Commit-Ready: Paul Stewart <pstew@chromium.org>
Tested-by: Paul Stewart <pstew@chromium.org>
1 file changed