feat(stm32mp2): use USART1 for debug console on ultra-fly boards

This commit configures the debug console to use USART1 for
ultra-fly boards, ensuring the early console works as expected
on these boards.

These changes are specific to the ultra-fly boards and do not
affect any other boards.

Change-Id: I17f2c50779426dc31a8e85d6903141c331882c86
Signed-off-by: Boerge Struempfel <boerge.struempfel@gmail.com>
diff --git a/plat/st/stm32mp2/platform.mk b/plat/st/stm32mp2/platform.mk
index d5e2785..06298a4 100644
--- a/plat/st/stm32mp2/platform.mk
+++ b/plat/st/stm32mp2/platform.mk
@@ -89,6 +89,19 @@
 $(eval $(call TOOL_ADD_IMG,STM32MP_DDR_FW,--ddr-fw))
 endif
 
+# Ultratronik Specific Boards
+ifeq ($(findstring ultra-fly,$(DTB_FILE_NAME)),ultra-fly)
+ULTRA_FLY := 1
+$(eval $(call assert_booleans,\
+	$(sort \
+		ULTRA_FLY \
+	)))
+$(eval $(call add_defines,\
+	$(sort \
+		ULTRA_FLY \
+	)))
+endif
+
 # Enable flags for C files
 $(eval $(call assert_booleans,\
 	$(sort \