Enable CONFIG_DRM_LOAD_EDID_FIRMWARE for Odroid N2 (or all?)

[KeimoL]

I got a particularly tricky display, which requires overriding the EDID on Odroid N2 (this maybe more of a feature of meson-drm ff900000) but Armbian doesn't come compiled on it with the CONFIG_DRM_LOAD_EDID_FIRMWARE kernel config option. Seems that it would be a fairly harmless thing to enable on Amlogic/Odroid and possibly on all devices.

[Igor]

Example of what we expect from you https://github.com/armbian/build/pull/5605 Even it looks like 10 minutes job, we don't have resources. There is a constant flow from 1000 people to 1 with such small jobs ... Make a PR!