video: check hardware version of DSI

Check the hardware version of DSI. Versions 1.30 & 1.31 are only
supported.

Signed-off-by: Yannick Fertre <yannick.fertre@st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Philippe Cornu <philippe.cornu@st.com>
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