[opentitantool] resolve a warning by avoiding unused dependence on "bail"
[opentitantool] resolve a warning by avoiding unused dependence on "bail"

Signed-off-by: Drew Macrae <32d48ac45113625c0a04afe7343eae478a303684@google.com>

lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan