bisect-kit: Improve the DUT repair function

1. Wait for reboot complete after requesting a servo reboot
2. Increase the connection timeout for `servodutil wait-foractive` to 2 minutes.

BUG=b:329175852
TEST=./run_tests.sh

Change-Id: I132654f364f2f74dbd1291fb89043acbacc13d9c
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/bisect-kit/+/5377590
Commit-Queue: MD Nayeem Jahan Rafi <njrafi@chromium.org>
Reviewed-by: Cheng-Yu Lee <cylee@google.com>
Tested-by: MD Nayeem Jahan Rafi <njrafi@chromium.org>
1 file changed