minui: Snapshot graphics_drm -> graphics_drm_qti

cp graphics_drm{,_qti}.h
cp graphics_drm{,_qti}.cpp

sed -i "s/graphics_drm.h/graphics_drm_qti.h/g" graphics_drm_qti.*

sed -i "s/GRSurfaceDrm/GRSurfaceDrmQti/g" graphics_drm_qti.*
sed -i "s/GRSurfaceDrmQtis/GRSurfaceDrms/g" graphics_drm_qti.*

sed -i "s/MinuiBackendDrm/MinuiBackendDrmQti/g" graphics_drm_qti.*

clang-format --style=file -i graphics_drm_qti.*

Change-Id: I710abd5505a120ff6fefbce9e66d5c29a1f24b79