ARM: DTS: stm32: add STM32F429 SoC and its Discovery board support

All these files comes from kernel v4.15-rc1.

Update some header with correct STMicroelectronics Copyright.

Remove the paragraph about writing to the Free Software
Foundation's mailing address as requested by checkpatch.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index a895c70..2c88f18 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -213,6 +213,8 @@
 
 dtb-$(CONFIG_ARCH_SNAPDRAGON) += dragonboard410c.dtb
 
+dtb-$(CONFIG_STM32F4) += stm32f429-disco.dtb
+
 dtb-$(CONFIG_STM32F7) += stm32f746-disco.dtb \
 	stm32f769-disco.dtb
 dtb-$(CONFIG_STM32H7) += stm32h743i-disco.dtb \