tdf#153672 Use RelativeMapMode so text in gdis are scaled/offset correctly

otherwise it overrides the outer GdiMetaFiles efforts to position the
origin and the text is rendered off-canvas in this scenario

Change-Id: If81692dce81fb6f00d5051228e1de13cdcae1770
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/148136
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
diff --git a/drawinglayer/source/processor2d/vclprocessor2d.cxx b/drawinglayer/source/processor2d/vclprocessor2d.cxx
index 4563d30..f13b7c4 100644
--- a/drawinglayer/source/processor2d/vclprocessor2d.cxx
+++ b/drawinglayer/source/processor2d/vclprocessor2d.cxx
@@ -389,7 +389,7 @@ void VclProcessor2D::RenderTextSimpleOrDecoratedPortionPrimitive2D(
                if (bChangeMapMode)
                {
                    mpOutputDevice->Push(vcl::PushFlags::MAPMODE);
                    mpOutputDevice->SetMapMode(aMapMode);
                    mpOutputDevice->SetRelativeMapMode(aMapMode);
                }
            }
            else