Following next kernel rcc bindings, we must use a MFD
RCC driver which is able to bind both clock and reset
drivers.
We can reuse and adapt RCC MFD driver already available
for MCU SoCs (F4/F7/H7).
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>