Paul Traina 972a3f282a Expose the control mechanism for serial console boot so that the default
shipped with freebsd can be changed without modifying the Makefiles directly.

Creates:	BOOT_FORCE_COMCONSOLE
		BOOT_PROBE_KEYBOARD
		BOOT_PROBE_KEYBOARD_LOCK
		BOOT_COMCONSOLE			(port value for console)
1996-10-14 17:25:53 +00:00
..
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