drm/sti: fix panel detection for DVO connector

The DVO connector is tag as disconnect because of a wrong management
of the panel detection.

Signed-off-by: Vincent Abriou <vincent.abriou@st.com>
Reviewed-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
This commit is contained in:
Vincent Abriou 2016-01-28 09:11:03 +01:00
commit 974c3bb511