asurada: enable discharge_on_ac
asurada: enable discharge_on_ac

BUG=b:168767467
TEST=`ectool chargecontrol discharge`
BRANCH=none

Signed-off-by: Ting Shen <c671d3efec3d7e7e285f3788bf0d1ba4c8605b78@google.com>
Change-Id: Ic379149e0fca4b2817debb9b81988c2ba55b0215
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2439763
Reviewed-by: Yilin Yang (kerker) <b60348db21a0b73e8345c1da67719faa1d4da16e@chromium.org>
Reviewed-by: Eric Yilun Lin <2f2733c7206ea2b76bd2db1905cc5e8a75841c48@chromium.org>
Tested-by: Yilin Yang (kerker) <b60348db21a0b73e8345c1da67719faa1d4da16e@chromium.org>
Tested-by: Ting Shen <c671d3efec3d7e7e285f3788bf0d1ba4c8605b78@chromium.org>
Commit-Queue: Ting Shen <c671d3efec3d7e7e285f3788bf0d1ba4c8605b78@chromium.org>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec