drivers/video backport from v6.8

JIRA: https://issues.redhat.com/browse/RHEL-23295

Backport drivers/video changes from upstream v6.8 a big update since it wasn't updated from 5.14

I dropped thoses 3 patches, because they are part of !3895 (merged)

ffc1e089725e3 VT: Add height parameter to con_font_get/set consw operations
05e2600cb0a4d VT: Bump font size limitation to 64x128 pixels
4173f018aae16 tty/vt: consolemap: rename and document struct uni_pagedir

Signed-off-by: Jocelyn Falempe jfalempe@redhat.com