dts: arm: stih407-family: remove duplicated rng nodes

the 2 rng nodes are duplicated within the stih407-family.dtsi

Signed-off-by: Alain Volmat <avolmat@me.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
1 file changed