add polled input handling and remove dead code Also add support for Break->DDB handling on console [Works in ddb including going back and forth to the PROM, but locks up after printing the 'swap on ...' line]
add polled input handling and remove dead code
Also add support for Break->DDB handling on console
[Works in ddb including going back and forth to the PROM, but locks up
after printing the 'swap on ...' line]

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars