DragonFlyBSD/src c2a57f4sys/boot/common loader.8, sys/platform/pc64/x86_64 machdep.c

Add work-around for bug #3167

"UEFI boot hangs right after initializing UEFI framebuffer."
It actually boots but the system console is not shown.

I had this issue on a TUXEDO InfinityBook Pro 14v4.
This commits allows me to boot by setting loader tunable
machdep.hack_efifb_probe_early=1.

This commit is not intended to be there forever.
It's there for people who experience the same issue and want
a quick and easy way to test if this fixes their booting issue.

Discussed-with: dillon
DeltaFile
+18-2sys/platform/pc64/x86_64/machdep.c
+4-0sys/boot/common/loader.8
+22-22 files

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