The DH DRC02 board has an on-board microSD slot, add DT properties to enable the slot. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Patrice Chotard <patrice.chotard@st.com> Cc: Patrick Delaunay <patrick.delaunay@st.com> Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>