Increase servo power button LONG_DELAY to 8.5 seconds.

The existing time limit of 8.2 seconds wasn't enough for ZGB;
increased it to 8.5 seconds.

BUG=None
TEST=platform_InstallTestImage on ZGB

Change-Id: I43e48298ad5ac41dbb41d681cdd77c9a4eb2138d
Reviewed-on: https://gerrit.chromium.org/gerrit/28546
Reviewed-by: Chris Sosa <sosa@chromium.org>
Tested-by: Richard Barnette <jrbarnette@chromium.org>
Commit-Ready: Richard Barnette <jrbarnette@chromium.org>
1 file changed