imx: sync with kernel device tree for Phycore SoM

Sync the Linux Kernel 5.4-rc6 device tree for Phytec Phycore
SoM and Segin board based on imx6UL and imx6ULL.

Changes includes Phytec naming convention for the devicetree files.

Signed-off-by: Parthiban Nallathambi <parthitce@gmail.com>
Acked-by: Peng Fan <peng.fan@nxp.com>
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 97504e3..88b2bf4 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -663,14 +663,14 @@
 	imx6ul-9x9-evk.dtb \
 	imx6ul-9x9-evk.dtb \
 	imx6ul-liteboard.dtb \
-	imx6ul-phycore-segin.dtb \
+	imx6ul-phytec-segin-ff-rdk-nand.dtb \
 	imx6ul-pico-hobbit.dtb \
 	imx6ul-pico-pi.dtb
 
 dtb-$(CONFIG_MX6ULL) += \
 	imx6ull-14x14-evk.dtb \
 	imx6ull-colibri.dtb \
-	imx6ull-phycore-segin.dtb \
+	imx6ull-phytec-segin-ff-rdk-emmc.dtb \
 	imx6ull-dart-6ul.dtb \
 	imx6ulz-14x14-evk.dtb