SmartOS/live 127960aoverlay/generic/smartdc/lib smartos_prompt_config.sh, tools build_vmware build_boot_image

OS-7725 SmartOS vmware image creation needs to adapt to loader changes
OS-7731 SmartOS builds need to use serial for loader
Portions contributed by: John Levon <john.levon at joyent.com>
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+13-6tools/build_vmware
+6-2tools/build_boot_image
+6-0overlay/generic/smartdc/lib/smartos_prompt_config.sh
+25-83 files

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