Disable ext4 metadata_csum feature when building images

e2fsprogs v1.44.0+ will enable this feature by default.  However, our
3.8 kernels (for e.g. falco) cannot mount these images.

BUG=chromium:833643
TEST=build test image, flash it, check with tune2fs, boot on falco

Change-Id: I05333f0f5feca97d3ee6caf3fb3e3c5c460e3ad1
Reviewed-on: https://chromium-review.googlesource.com/1014504
Commit-Ready: Kevin Cernekee <cernekee@chromium.org>
Tested-by: Kevin Cernekee <cernekee@chromium.org>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-by: Aditya Kali <adityakali@google.com>
(cherry picked from commit 4b1db8f892d783dff9b280c965e6ea7bb9d97bd9)
Reviewed-on: https://chromium-review.googlesource.com/1025077
Reviewed-by: Kevin Cernekee <cernekee@chromium.org>
Commit-Queue: Kevin Cernekee <cernekee@chromium.org>
1 file changed