K 10
svn:author
V 5
gonzo
K 8
svn:date
V 27
2018-04-04T01:13:28.252340Z
K 7
svn:log
V 209
Fix arm64 buildkernel target with "nooptions KDB"

Make kdb_trap in breakpoint exception handler conditional. If "options KDB"
is not present just panic with message that debugger is not enabled.

PR:		224653

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