UEFI loader picking wrong native resolution, documented fixes don't work

[CeDeROM]

I have noticed similar problems with my AMDGPU on AMD RADEON. Setting
hw.syscons.disable=1 in /boot/loader.conf and then loading the
graphics module from rc.conf helped..

https://github.com/FreeBSDDesktop/DEPRECATED-freebsd-base-graphics/issues/170

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CeDeROM, SQ7MHZ, http://www.tomek.cedro.info