boards: shield: x_nucleo_idb05a1: add nucleo_l476rg spi overlay

Standard Arduino CLK signal is on D13,
nucleo_l476rg board has been modified accordingly.
Need an overlay to use default x_nucleo_idb05a1 spin D3 (PB3)

Signed-off-by: Alexandre Bourdiol <alexandre.bourdiol@st.com>
1 file changed