feat(stm32mp2-fdts): add SD-card and eMMC support on STM32MP257F-EV1

Add sdmmc1 node to support SD-cards on STM32MP257F-EV1 board, and
sdmmc2 node for eMMC.

Signed-off-by: Yann Gautier <yann.gautier@st.com>
Change-Id: I375e35aa6a96719a69df976500915be51c395b00
1 file changed