marvell: Revert to SD8797_14.66.27.p9 Firmware

Revert SD8797 firmware to version 14.66.27.p9.

BUG=chrome-os-partner:23644
TEST=load and run firmware

Change-Id: Id63530427941e59bbb99f4d08aeb919656f96e50
Reviewed-on: https://chromium-review.googlesource.com/175984
Reviewed-by: Paul Stewart <pstew@chromium.org>
Commit-Queue: Paul Stewart <pstew@chromium.org>
Tested-by: Paul Stewart <pstew@chromium.org>
1 file changed