stm32f4: Add support for stm32f429-discovery board

Signed-off-by: Kamil Lulko <rev13@wp.pl>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/board/st/stm32f429-discovery/Kconfig b/board/st/stm32f429-discovery/Kconfig
new file mode 100644
index 0000000..e73d11b
--- /dev/null
+++ b/board/st/stm32f429-discovery/Kconfig
@@ -0,0 +1,19 @@
+if TARGET_STM32F429_DISCOVERY
+
+config SYS_BOARD
+	string
+	default "stm32f429-discovery"
+
+config SYS_VENDOR
+	string
+	default "st"
+
+config SYS_SOC
+	string
+	default "stm32f4"
+
+config SYS_CONFIG_NAME
+	string
+	default "stm32f429-discovery"
+
+endif