Add scaling and panel orientation properties for
icl mipi dsi.

v2: Add platform specific function (Ville)
v3: Remove redundant check and update scaler call (Jani, Ville)
Signed-off-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190627152457.26146-1-vandita.kulkarni@intel.com