Display recovery reason in prompt_and_wipe_data

Display the passed --reason= on the recovery screen when showing
the prompt_and_wipe_data menu.

This can help speed up investigations of bug reports,
when it is not clear why the prompt_and_wipe_data screen
is being shown to the user.

Test: enter RescueParty on Cuttlefish
Bug: 280625942
Change-Id: Ia4d120e822c4d1f11e541f1df0fef203f22f811d