SmartOS/live a89b45aman/src sysinfo.1m.md, overlay/generic/lib/svc/method smartdc-config

OS-7662 need a way to disable SMT
OS-7684 sysinfo mis-parses bootparams
Reviewed by: Jerry Jelinek <jerry.jelinek at joyent.com>
Reviewed by: Robert Mustacchi <rm at joyent.com>
Approved by: Jerry Jelinek <jerry.jelinek at joyent.com>
DeltaFile
+76-30src/sysinfo
+31-4man/src/sysinfo.1m.md
+25-1overlay/generic/lib/svc/method/smartdc-config
+4-1overlay/generic/smartdc/lib/smartos_prompt_config.sh
+136-364 files

UnifiedSplitRaw