futility: updater: print flashrom execution logs on read failure

To prevent flooding AU logs, we don't want flashrom to print verbose
logs especially when reading system SPI flash. However, if anything goes
wrong it will be very helpful to have all the messages logged.

With this patch, we will try reading system flash again with max verbosity.

TEST=make futil; tests/futility/run_test_scripts.sh $(pwd)/build/futility

Change-Id: I5469182f2628855e65546bef3abf8791261aabca
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/1545598
Commit-Queue: Edward O'Callaghan <quasisec@chromium.org>
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
1 file changed