builder/amazon: chmod debug key so it is ssh-ready
builder/amazon: chmod debug key so it is ssh-ready

Kaixiang/packer,Kaixiang/packer,Kaixiang/packer,patricklucas/packer,patricklucas/packer,patricklucas/packer,TranscendComputing/packer,patricklucas/packer,TranscendComputing/packer,Kaixiang/packer,TranscendComputing/packer,suma/packer,TranscendComputing/packer,suma/packer,suma/packer,suma/packer