ARM: dts: stm32: add sdmmc cd-gpios for STM32MP135F-DK

On STM32MP135F-DK, the SD card detect GPIO is GPIOH4.
Backport of the Linux patch:
https://lore.kernel.org/linux-arm-kernel/20220921160334.3227138-1-yann.gautier@foss.st.com/



Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>