arm64: zynqmp: Add support for Avnet Ultra96

Avnet Ultra96 is rebranded Xilinx zcu100 revC/D. Add new defconfig files
and point to origin internal board name.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 797e575..ebfa227 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -152,6 +152,7 @@
 	zynq-zybo.dtb \
 	zynq-zybo-z7.dtb
 dtb-$(CONFIG_ARCH_ZYNQMP) += \
+	avnet-ultra96-rev1.dtb			\
 	zynqmp-mini-emmc0.dtb			\
 	zynqmp-mini-emmc1.dtb			\
 	zynqmp-mini-nand.dtb			\