Handle `panel orientation` drm property
This makes sure rotation 'NORMAL' is actually like that and devices don't need to deal with phoc.ini.
https://sources.debian.org/src/linux/5.10.4-1/drivers/gpu/drm/drm_connector.c/?hl=1199#L1199
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This makes sure rotation 'NORMAL' is actually like that and devices don't need to deal with phoc.ini.
https://sources.debian.org/src/linux/5.10.4-1/drivers/gpu/drm/drm_connector.c/?hl=1199#L1199