factory_reset: use --method args of battery_cutoff

Use the --method args when calling battery_cutoff script.

BUG=chromium:544021
TEST=Maunually tested on Samus

CQ-DEPEND=CL:304535

Change-Id: Ie4a1a76e791294a97e7823d9205f1eaccadf6e6f
Reviewed-on: https://chromium-review.googlesource.com/305106
Commit-Ready: Shun-Hsing Ou <shunhsingou@chromium.org>
Tested-by: Shun-Hsing Ou <shunhsingou@chromium.org>
Reviewed-by: Bowgo Tsai <bowgotsai@chromium.org>
1 file changed