This adds the required conf and dts overlays required for the
application on stm32h747i-disco board.
Also moved CONFIG_SDMMC_STM32_HWFC option from prj_blk.conf to
nucleo_h743zi_blk.conf as that is STM specific option.
Build the application as
west build -p always -b stm32h747i_disco_m7 \
samples/subsys/fs/littlefs/ -- \
-DOVERLAY_CONFIG=boards/stm32h747i_disco_m7.conf -DCONF_FILE=prj_blk.conf
Signed-off-by: Murali Karicheri <murali.karicheri@sandc.com>
b235372546