ARM: stm32: Add both PDK2 and DRC02 DT into DHCOM fitImage its

Include both PDK2 and DRC02 DTs in the DHCOM fitImage .its and implement
support in SPL to select the correct configuration entry for U-Boot by
using the machine compatible string from SPL DT.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Patrice Chotard <patrice.chotard@st.com>
Cc: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
diff --git a/configs/stm32mp15_dhcom_basic_defconfig b/configs/stm32mp15_dhcom_basic_defconfig
index dc85625..c70414e 100644
--- a/configs/stm32mp15_dhcom_basic_defconfig
+++ b/configs/stm32mp15_dhcom_basic_defconfig
@@ -57,6 +57,7 @@
 CONFIG_CMD_EXT4_WRITE=y
 CONFIG_CMD_MTDPARTS=y
 # CONFIG_SPL_DOS_PARTITION is not set
+CONFIG_OF_LIST="stm32mp15xx-dhcom-pdk2 stm32mp15xx-dhcom-drc02"
 CONFIG_OF_SPL_REMOVE_PROPS="interrupts interrupt-names interrupts-extended interrupt-controller \\\#interrupt-cells interrupt-parent dmas dma-names assigned-clocks assigned-clock-rates assigned-clock-parents hwlocks"
 CONFIG_ENV_IS_IN_SPI_FLASH=y
 CONFIG_USE_ENV_SPI_BUS=y