bnc#817956 VML import of mso-position-vertical-relative:margin

Change-Id: I86464c44022ef8c8a8037d4228bb2a6409fc77af
diff --git a/oox/source/vml/vmlshape.cxx b/oox/source/vml/vmlshape.cxx
index b4b3e9e..1ec5c24 100644
--- a/oox/source/vml/vmlshape.cxx
+++ b/oox/source/vml/vmlshape.cxx
@@ -457,6 +457,10 @@ void lcl_SetAnchorType(PropertySet& rPropSet, const ShapeTypeModel& rTypeModel)
        {
            rPropSet.setProperty(PROP_VertOrientRelation, text::RelOrientation::PAGE_FRAME);
        }
        else if ( rTypeModel.maPositionVerticalRelative == "margin" )
        {
            rPropSet.setProperty(PROP_VertOrientRelation, text::RelOrientation::PAGE_PRINT_AREA);
        }
        else
        {
            // Vertical placement relative to margin, because parent style must not modify vertical position