drm/nouveau: Workaround broken TV load detection on a "Zotac FX5200".

The blob seems to have the same problem so it's probably a hardware
issue (bug 28810).

Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
1 file changed