[autotest] collect /var/log/bios_info.txt in sysinfo

Add "/var/log/bios_info.txt" to _DEFAULT_FILES_TO_LOG_PER_BOOT for sysinfo to
collect in test job.

BUG=chromium:386006
TEST=test_that 172.22.30.146 dummy_Pass
confirm bios_info.txt is collected with full content in path like
/tmp/test_that_results_ekwWAw/results-1-dummy_Pass/sysinfo/bios_info.txt

Change-Id: I8656d18c5122608e776d9fdf74b8ad29ce59f603
Reviewed-on: https://chromium-review.googlesource.com/204542
Tested-by: Dan Shi <dshi@chromium.org>
Reviewed-by: Richard Barnette <jrbarnette@chromium.org>
Commit-Queue: Dan Shi <dshi@chromium.org>
1 file changed