[bazel] fix bazel airgapped prep script
[bazel] fix bazel airgapped prep script

PR #14924 should have also added another dep to the airgapped script.

Signed-off-by: Timothy Trippel <77eacc84f9735d3cbb55a271710be269fc3a5818@google.com>

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