Increase the timeout for killing kvm process

This makes stopping VM less flaky.

BUG=None
TEST=repeatedly start/stop vm

Change-Id: I1cd19f6ed3cce701d869f99a264cbb37cf4bc9e8
Reviewed-on: https://chromium-review.googlesource.com/184271
Reviewed-by: Chris Sosa <sosa@chromium.org>
Tested-by: Yu-Ju Hong <yjhong@chromium.org>
Commit-Queue: Yu-Ju Hong <yjhong@chromium.org>
1 file changed